Environmental Conservation and Management

87 soru

Soru 61Soru

Before executing major development projects in Nigeria—such as large-scale agricultural schemes, highway construction, or industrial estates—developers are statutorily required to evaluate potential ecological impacts and propose mitigation measures. Which legislative instrument mandates this evaluation prior to project commencement?

Cevabı ve açıklamayı göster

Cevap: Environmental Impact Assessment (EIA) Act

Cevap

Environmental Impact Assessment (EIA) Act
The Environmental Impact Assessment (EIA) Act Decree No. 86 of 1992 requires both public and private proponents of major developmental projects in Nigeria to analyze potential environmental impacts and incorporate mitigation strategies before approval and construction.

Adım Adım Çözüm

1
Identify the key requirement described in the scenario.
The requirement is the statutory pre-project evaluation of ecological consequences and mitigation planning for major infrastructure and industrial developments.
Determining the core purpose of the regulation narrows down the applicable legislation.
2
Match the requirement with the correct Nigerian environmental law.
The Environmental Impact Assessment (EIA) Act (Decree No. 86 of 1992) explicitly mandates environmental impact studies prior to project approval.
Other listed statutory instruments focus on toxic waste criminalization, oil spill management, or disaster relief.

Anahtar Kavram

Environmental Impact Assessment (EIA) Act mandate in Nigeria
Tahmini Süre:1m 0s
Soru 62Soru

Which international environmental agreement was specifically established to conserve wetlands of international importance, particularly as waterfowl habitats?

Cevabı ve açıklamayı göster

Cevap: Ramsar Convention

Cevap

The Ramsar Convention is the international agreement specifically established to protect wetlands of international importance.
The Ramsar Convention is an international treaty created in 1971 to promote national action and international cooperation for the conservation and wise use of wetlands and their resources.

Adım Adım Çözüm

1
Identify the primary environmental mandate described in the stem.
The target domain is the protection and conservation of wetlands and waterfowl habitats.
Determining the core objective helps distinguish between major international environmental treaties.
2
Match the mandate to the correct international agreement.
The Ramsar Convention, signed in 1971, is the primary global agreement focused on wetland preservation.
Each international agreement addresses a specific global environmental issue, such as wetlands, ozone depletion, or climate change.

Anahtar Kavram

International environmental treaties and their primary focus areas
Soru 63Soru

Match each specific rationale for environmental management on the left with its corresponding ecological or socio-economic objective on the right.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

Preservation of Biodiversity
Prevention of Resource Depletion
Maintenance of Ecological Balance
Sustainable Resource Utilization

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

Preservation of Biodiversity matches Safeguarding diverse gene pools and preventing species extinction; Prevention of Resource Depletion matches Managing finite non-renewable assets to prevent total exhaustion; Maintenance of Ecological Balance matches Ensuring biogeochemical cycles and predator-prey relationships remain uninterrupted; Sustainable Resource Utilization matches Exploiting renewable assets at rates that do not exceed their natural rate of regeneration.
Each conservation rationale matches a distinct ecological or socio-economic objective: biodiversity protection preserves genetic diversity and prevents species extinction, resource depletion management safeguards finite reserves, ecological balance maintains nutrient cycles and food webs, and sustainable utilization balances consumption rates with natural replacement rates.

Adım Adım Çözüm

1
Analyze the core definition of preserving biological diversity.
Identify that species protection and genetic variation correspond directly to safeguarding gene pools and preventing extinction.
Biodiversity preservation specifically targets biological organisms and genetic resources.
2
Evaluate the objective of resource depletion prevention.
Link finite non-renewable reserves (such as minerals and fossil fuels) to managing consumption to prevent total exhaustion.
Depletion prevention is primarily concerned with finite stock resources that cannot naturally replenish on human timescales.
3
Determine the scope of ecological balance maintenance.
Connect systemic ecosystem stability to self-regulating biogeochemical cycles and trophic interactions.
Ecological balance depends on uninterrupted feedback loops between living organisms and their non-living environment.
4
Define sustainable resource utilization.
Match resource extraction rates with natural replenishment capacities.
Resource sustainability is defined by consuming natural yields without degrading the underlying reproductive capital.

Anahtar Kavram

Rationale and Fundamental Need for Environmental Conservation
Soru 64Soru

Fill in the blank to complete the statement regarding global environmental protection initiatives:

Aşağıdaki boşlukları doldurun

The global treaty designed to ensure that international trade in specimens of wild animals and plants does not threaten their survival is known as .
Cevabı ve açıklamayı göster

Cevap

CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora)
CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) is an international agreement between governments designed to safeguard wild animals and plants against over-exploitation resulting from international trade.

Adım Adım Çözüm

1
Identify the primary objective described in the text: regulating international trade in wild animal and plant specimens to prevent endangerment.
The agreement that matches this objective is CITES.
CITES was drafted in 1973 to protect wild species from over-exploitation driven by international commercial trade.

Anahtar Kavram

CITES and Global Wildlife Protection
Soru 65Soru

Environmental energy planners evaluating resource management across West Africa need to distinguish finite geological deposits from naturally replenished energy sources. Which of the following groupings consists exclusively of non-renewable resources?

Cevabı ve açıklamayı göster

Cevap: Crude oil, uranium, and natural gas

Cevap

Crude oil, uranium, and natural gas
The correct grouping includes crude oil, uranium, and natural gas, all of which are exhaustible geological resources that cannot be naturally restored once depleted through human consumption.

Adım Adım Çözüm

1
Define non-renewable natural resources
Non-renewable resources exist in finite quantities in the Earth's crust and form over millions of years, meaning their rate of extraction far exceeds their rate of natural formation.
Establishing clear classification criteria is essential for evaluating resource sustainability.
2
Analyze each resource in the options
Crude oil and natural gas are fossilized organic hydrocarbons, while uranium is a finite radioactive mineral deposit. None of these three resources can be regenerated on a human timescale.
Verify that every item within a selected grouping satisfies the non-renewable criteria.
3
Eliminate options containing renewable resources
Solar power, wind energy, hydroelectric power, geothermal energy, biomass energy, and tidal power are continuously replenished by natural ecological and physical processes.
Any grouping containing even one renewable energy source fails the requirement of consisting exclusively of non-renewable resources.

Anahtar Kavram

Classification of Natural Resources into Renewable and Non-Renewable Types
Soru 66Soru

Environmental conservation is fundamentally driven by the need to balance human resource demands with long-term ecological stability. Which of the following statements best articulates the core philosophy underlying environmental conservation?

Cevabı ve açıklamayı göster

Cevap: The planned management and sustainable utilization of natural resources to ensure continuous yield while preserving ecological balance.

Cevap

The planned management and sustainable utilization of natural resources to ensure continuous yield while preserving ecological balance.
The correct answer accurately captures the essence of environmental conservation: managing and utilizing natural resources rationally so that they fulfill human needs today without destroying the ecological systems needed for tomorrow.

Adım Adım Çözüm

1
Define environmental conservation.
Environmental conservation refers to the wise, planned, and sustainable management of natural resources.
It emphasizes preventing resource depletion while allowing controlled human utilization.
2
Distinguish conservation from preservation and exploitation.
Preservation seeks complete non-use of nature, whereas exploitation prioritizes immediate consumption over sustainability. Conservation bridges utilization and ecological balance.
Understanding these distinctions clarifies why sustainable management is the true objective of environmental conservation.

Anahtar Kavram

Concept and Rationale of Environmental Conservation
Soru 67Soru

To improve soil nitrogen content and reduce wind erosion on farmlands within the Sudan savanna belt of northern Nigeria, agricultural conservationists recommend planting hedgerows of nutrient-fixing trees between row crops. Which conservation method best describes this agricultural practice?

Cevabı ve açıklamayı göster

Cevap: Alley cropping

Cevap

Alley cropping is an agroforestry conservation technique that integrates rows of nitrogen-fixing trees or shrubs with cultivated field crops to enhance soil fertility and control erosion.
Alley cropping is an agroforestry technique that combines agricultural crops with hedgerows of woody legumes. The trees provide nitrogen fixation, organic leaf mulch, and windbreak protection, which is particularly effective in semi-arid environments such as the Sudan savanna.

Adım Adım Çözüm

1
Analyze the land management scenario provided in the stem.
Identified key components: planting hedgerows of woody, nutrient-fixing plants in rows alongside annual crops in semi-arid zones.
Environmental conservation techniques are categorized based on whether they combine forestry with agriculture, alter slope geometry, or alternate crop types over time.
2
Evaluate the agroforestry conservation techniques matching the described strategy.
Alley cropping specifically refers to growing food crops in the avenues ('alleys') formed by rows of leguminous trees or shrubs.
The leguminous trees fix atmospheric nitrogen into the soil, while their roots anchor topsoil and canopy windbreaks reduce wind erosion.

Anahtar Kavram

Agroforestry and Soil Conservation Techniques
Tahmini Süre:1m 0s
Soru 68Soru

Environmental conservation advocates for the absolute protection of natural ecosystems by prohibiting all forms of human resource utilization and development. Is this statement True or False?

Cevabı ve açıklamayı göster

Cevap: False

Cevap

False
The statement is False because environmental conservation does not prohibit resource utilization. Instead, it seeks to balance human socio-economic needs with environmental health through sustainable management practices.

Adım Adım Çözüm

1
Define environmental conservation.
Environmental conservation is defined as the rational management and sustainable use of natural resources and the environment.
To evaluate the statement, one must identify the core purpose of conservation, which includes planned utilization rather than complete non-touch policies.
2
Differentiate conservation from environmental preservation.
Preservation focuses on setting aside natural areas and completely protecting them from human exploitation, while conservation integrates human activity with ecological sustainability.
The stem describes strict preservation, making the statement false regarding conservation.

Anahtar Kavram

Concept of Environmental Conservation vs. Preservation
Soru 69Soru

Match each environmental conservation technique listed on the left with its primary operational objective or environmental management function on the right.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

Terracing
Taungya system
Effluent treatment
Shelterbelts

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

Terracing matches with mitigating surface runoff and soil erosion on steep slopes; Taungya system matches with integrating temporary crop farming with tree cultivation; Effluent treatment matches with neutralizing and purifying industrial wastewater before aquatic discharge; and Shelterbelts match with establishing tree rows to arrest desert encroachment and wind deflation.
Each technique targets a specific environmental problem: terracing combats water erosion on steep gradients by altering slope structure; the Taungya system promotes reforestation alongside temporary food production; effluent treatment purifies industrial liquid waste to protect water bodies; and shelterbelts function as windbreaks to halt desert encroachment in arid zones.

Adım Adım Çözüm

1
Analyze mechanical slope conservation techniques.
Terracing constructs step-like benches across hillside gradients, effectively shortening the slope length and reducing surface runoff momentum.
This directly targets water-driven soil erosion on hilly agricultural terrains.
2
Evaluate integrated forest management strategies.
The Taungya system combines food crop farming with forestry plantation development during the early growth phase of young trees.
It aids in cost-effective afforestation while providing temporary land access for rural farmers.
3
Examine industrial pollution abatement measures.
Effluent treatment processes chemical and manufacturing wastewater to lower chemical oxygen demand (COD) and remove toxins.
This prevents severe water pollution and protects downstream aquatic organisms.
4
Identify biological measures for dryland wind erosion control.
Shelterbelts consist of rows of tall trees planted at right angles to wind currents in dry regions.
They disrupt wind energy, reducing soil detachment and stabilizing desert margins.

Anahtar Kavram

Classification and application of mechanical, biological, agroforestry, and industrial environmental conservation methods
Tahmini Süre:1m 30s
Soru 70Soru

In 2007, the Federal Government of Nigeria enacted legislation establishing a new regulatory body to repeal and replace the Federal Environmental Protection Agency (FEPA). Which regulatory agency was created by this Act?

Cevabı ve açıklamayı göster

Cevap: National Environmental Standards and Regulations Enforcement Agency

Cevap

National Environmental Standards and Regulations Enforcement Agency
The National Environmental Standards and Regulations Enforcement Agency (NESREA) was established by the NESREA Act of 2007, which repealed the Federal Environmental Protection Agency (FEPA) Act and vested broad regulatory and enforcement powers in NESREA.

Adım Adım Çözüm

1
Identify the historical transition in Nigerian environmental regulation.
The Federal Environmental Protection Agency (FEPA) Act was repealed in 2007.
Institutional restructuring created a modern statutory agency with updated enforcement powers.
2
Select the specific agency created under the 2007 Act.
The National Environmental Standards and Regulations Enforcement Agency (NESREA) was established.
NESREA inherited FEPA's broad mandate to enforce environmental standards, laws, and regulations across Nigeria.

Anahtar Kavram

Establishment of NESREA as Nigeria's main environmental enforcement body replacing FEPA
Soru 71Soru

A forestry board requires commercial timber companies to enforce selective harvesting limits and execute compulsory replanting schemes across working forest reserves. Which core principle of environmental management does this regulation illustrate?

Cevabı ve açıklamayı göster

Cevap: Environmental conservation based on sustainable resource utilization

Cevap

Environmental conservation based on sustainable resource utilization
The correct answer emphasizes environmental conservation based on sustainable resource utilization because selective harvesting and mandatory replanting ensure that timber resources are extracted responsibly without destroying the ecosystem's capacity to regenerate.

Adım Adım Çözüm

1
Analyze the management practices described in the stem
Selective logging and compulsory replanting allow timber extraction while maintaining long-term forest yield.
Identifying the operational goal helps distinguish between total protection, exploitation, and managed use.
2
Distinguish between environmental conservation and preservation
Conservation balances rational human use with resource maintenance, whereas preservation completely restricts human access.
This conceptual distinction is fundamental to environmental management.

Anahtar Kavram

Environmental Conservation vs. Preservation
Soru 72Soru

A textile processing factory in Kano continually discharges untreated chemical dye waste directly into a local watercourse. Which Nigerian federal agency holds the statutory authority to enforce environmental compliance, sanction the facility, and prosecute the non-compliant operators?

Cevabı ve açıklamayı göster

Cevap: National Environmental Standards and Regulations Enforcement Agency

Cevap

The National Environmental Standards and Regulations Enforcement Agency is the correct federal agency mandated to enforce compliance and sanction non-compliant industrial facilities in general non-oil sectors.
The National Environmental Standards and Regulations Enforcement Agency is statutory body established to enforce environmental laws, regulations, and standards across all non-oil sectors in Nigeria, including industrial effluent control.

Adım Adım Çözüm

1
Identify the nature of the environmental violation and sector involved
The scenario involves industrial chemical dye effluent discharge from a manufacturing plant in the non-oil sector.
Regulatory bodies in Nigeria have distinct sectoral jurisdictions.
2
Match the statutory regulatory agency to its specific legal mandate
The National Environmental Standards and Regulations Enforcement Agency holds statutory responsibility for environmental standards enforcement in all general non-petroleum sectors.
Petroleum spills fall under specialized agencies, whereas general manufacturing effluent enforcement lies under general environmental standards regulation.

Anahtar Kavram

Statutory mandates of Nigerian environmental regulatory agencies
Tahmini Süre:1m 0s
Soru 73Soru

An energy board in West Africa is evaluating power sources to ensure sustainable long-term development. Which of the following best explains why geothermal energy is classified as a renewable natural resource, whereas coal deposits are classified as non-renewable?

Cevabı ve açıklamayı göster

Cevap: Geothermal energy is continuously naturally replenished on a human timescale, whereas coal forms over geological periods far exceeding human rate of consumption.

Cevap

Geothermal energy is classified as renewable because it is naturally replenished on a human timescale, whereas coal forms over geological timeframes far exceeding its rate of consumption.
Renewability is defined by the rate at which a natural resource naturally replenishes relative to human consumption. Geothermal heat is continuously supplied by the Earth's interior processes on a human timeframe, whereas coal is a fossil fuel whose geological formation process requires millions of years, making it finite and exhaustible.

Adım Adım Çözüm

1
Define the criterion for natural resource classification (renewable vs. non-renewable).
Classification depends primarily on the rate at which the resource is naturally replenished relative to human rate of utilization.
Renewable resources naturally regenerate fast enough to be sustained indefinitely under proper management.
2
Analyze geothermal heat as an energy source.
Geothermal energy draws on continuous subsurface heat flows generated by planetary thermal decay, providing ongoing replenishment.
This heat flux is functionally infinite and self-renewing on human time horizons.
3
Analyze coal deposits as a fossil fuel resource.
Coal forms from compressed organic matter under heat and pressure over millions of years.
Because its formation rate is millions of times slower than current extraction rates, coal reserves are finite and exhaustible.

Anahtar Kavram

Resource Classification by Rate of Replenishment
Tahmini Süre:1m 0s
Soru 74Soru

The primary economic and ecological rationale for environmental conservation is that natural ecosystems provide essential life-support services whose degradation creates long-term socio-economic costs that far exceed the short-term profits of unsustainable resource exploitation.

Cevabı ve açıklamayı göster

Cevap: True

Cevap

The statement is TRUE.
The statement correctly highlights the core need for environmental conservation: preserving ecological services that serve as the foundational infrastructure for human health, food security, and sustained economic welfare.

Adım Adım Çözüm

1
Examine the fundamental definition and necessity of environmental conservation.
Conservation involves the wise management and sustainable use of environmental resources to satisfy present needs without compromising future generations.
Determining the truth of the statement requires identifying why environmental management is essential for human societies.
2
Analyze the economic and ecological trade-offs mentioned in the statement.
Unsustainable activities generate fast economic returns but collapse essential natural infrastructure, resulting in severe long-term financial, health, and environmental crises.
Evaluating cost-benefit dynamics confirms that conserving ecosystem services prevents catastrophic future losses.

Anahtar Kavram

Concept and Need for Environmental Conservation
Soru 75Soru

To check the severe gully expansion destroying farmland and infrastructure in parts of South-Eastern Nigeria, environmental engineers construct low, permeable barrier walls across gully channels using stones enclosed in wire mesh cages to trap sediment and reduce runoff velocity. Which soil erosion management technique is described?

Cevabı ve açıklamayı göster

Cevap: Installation of gabion structures

Cevap

Installation of gabion structures
The installation of gabions involves constructing wire mesh containers packed with rocks across active erosion channels. These structures dissipate the velocity of flowing water, facilitate water infiltration, and trap moving sediments, making them an effective mechanical method for controlling gully erosion in regions like South-Eastern Nigeria.

Adım Adım Çözüm

1
Analyze the mechanical description provided in the scenario
Identified low, permeable wire-mesh baskets filled with stones constructed across gully beds to intercept sediment and dissipate kinetic energy of surface runoff
Understanding the physical setup and working mechanism of specific soil conservation techniques is essential for accurate classification.
2
Match the mechanism with the correct conservation technique
Gabions are the standard engineering structure matching this description, widely used in South-Eastern Nigeria for gully stabilization.
Distinguishes mechanical watershed intervention methods from biological (afforestation) or policy-based (EIA) measures.

Anahtar Kavram

Mechanical Soil Conservation Methods (Gabions and Check Dams)
Tahmini Süre:1m 0s
Soru 76Soru

Match each global environmental agreement or initiative on the left with its primary conservation mandate on the right.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

Basel Convention
Agenda 21
CITES
UNCCD

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

Basel Convention matches with controlling transboundary movements and disposal of hazardous wastes; Agenda 21 matches with serving as a global comprehensive action plan for sustainable development; CITES matches with regulating international trade in endangered species; UNCCD matches with combating land degradation and mitigating drought impacts in drylands.
Each agreement correctly corresponds to its international mandate: the Basel Convention regulates transboundary movements of hazardous waste; Agenda 21 provides a comprehensive roadmap for sustainable development; CITES regulates international commercial trade in endangered species; and UNCCD focuses on combating land degradation and desertification in dryland areas.

Adım Adım Çözüm

1
Analyze the primary objective of waste management and wildlife trade agreements.
The Basel Convention focuses on transboundary hazardous waste transport, while CITES targets the regulation of endangered wildlife trade.
Basel prevents the toxic waste dumping in developing regions, while CITES addresses biodiversity loss caused by international commercial trade.
2
Analyze global development frameworks and land conservation treaties.
Agenda 21 acts as a broad sustainable development action plan, whereas UNCCD specifically targets land degradation and desertification.
Agenda 21 provides holistic socio-environmental development guidelines, while UNCCD focuses on ecological restoration of dryland environments.

Anahtar Kavram

Global Environmental Treaties and Initiatives
Soru 77Soru

Peat and lignite are classified as non-renewable natural resources because their natural rate of formation spans millions of years of geological processes, despite their organic plant origin.

Cevabı ve açıklamayı göster

Cevap: True

Cevap

The statement is True. Although derived from biological vegetation, peat and lignite require geological timescales to form, making them non-renewable natural resources.
The statement correctly identifies that resource renewability is determined by the rate of natural replenishment relative to human consumption. Because peat and lignite formation takes millions of years, they are functionally finite non-renewable resources.

Adım Adım Çözüm

1
Analyze the formation process and origin of peat and lignite.
Peat and lignite originate from decomposed organic plant matter subjected to gradual pressure and heat over geological epochs.
Resource classification depends on comparing the rate of natural replenishment against the rate of human consumption.
2
Evaluate whether biological origin guarantees renewability.
Organic origin alone does not make a resource renewable if geological transformation time far exceeds human scales.
Renewable resources must naturally restore themselves rapidly enough to match ongoing utilization.
3
Conclude the correct resource category.
Peat and lignite are non-renewable fossil fuel precursors.
Their finite total reserves and multi-million-year formation period place them strictly in the non-renewable category.

Anahtar Kavram

Classification of organic geological deposits as non-renewable resources based on replenishment timescales.
Tahmini Süre:45s
Soru 78Soru

Match each environmental hazard occurring in Nigerian regions with its primary anthropogenic driving factor.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

Urban flash flooding in coastal Lagos
Accelerated gully incision in Anambra State
Marine and aquatic ecosystem degradation in the Niger Delta
Severe agricultural topsoil sheet erosion in savanna farmlands

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

Urban flash flooding in Lagos matches with drainage blockage by waste and structures; Accelerated gully incision in Anambra matches with vegetation clearing and improper road drainage outlets; Marine ecosystem degradation in the Niger Delta matches with crude oil spillage and effluent discharge; Agricultural topsoil erosion matches with intensive tillage, overgrazing, and removal of ground cover.
Each hazard correctly aligns with its characteristic regional trigger in Nigeria: Lagos flooding is driven by blocked drainage; Anambra gully formation is driven by land clearing and unchanneled road runoff; Niger Delta aquatic damage is caused by oil spills and effluents; and savanna soil degradation is caused by overgrazing and intensive soil tillage.

Adım Adım Çözüm

1
Identify the main human triggers of urban flash flooding in coastal mega-cities like Lagos.
High-density urbanization combined with improper waste disposal clogs drainage channels, causing water retention during rainstorm events.
Inadequate municipal drainage infrastructure causes rapid surface water pooling.
2
Examine the specific engineering and land-use factors driving gully erosion in southeastern Nigeria.
Unplanned road gutters direct concentrated runoff onto fragile, easily eroded soil strata in states such as Anambra.
Concentrated high-velocity runoff cuts rapidly into unprotected subsoils.
3
Analyze the primary causes of water pollution and aquatic loss in petroleum-producing areas.
Oil spills from hydrocarbon extraction and industrial discharges pollute creeks, killing aquatic life and damaging wetlands.
Chemical and oil contamination directly destroys marine biological life.
4
Relate farming practices to soil degradation in open savanna environments.
Overgrazing and clearing vegetative residue leave exposed surface soil vulnerable to raindrop impact and sheet wash.
Ground cover removal exposes topsoil to severe kinetic erosion by rainfall.

Anahtar Kavram

Human activities as driving forces of regional environmental hazards
Soru 79Soru

In major low-lying coastal urban zones of southern Nigeria, intense groundwater abstraction combined with frequent ocean storm surges frequently leads to severe subsurface degradation. Which environmental hazard is directly caused by this combination of human action and marine influence?

Cevabı ve açıklamayı göster

Cevap: Salinization of freshwater coastal aquifers

Cevap

Salinization of freshwater coastal aquifers
In low-lying coastal settlements, over-extracting groundwater lowers the water table hydrostatic pressure. Combined with ocean storm surges, seawater infiltrates permeable coastal sediments, leading to the salinization of underground freshwater aquifers.

Adım Adım Çözüm

1
Analyze the geographical setting and drivers given in the stem.
The setting is low-lying coastal southern Nigeria experiencing high groundwater withdrawal and ocean storm surges.
Identifying the physical environment (coastal aquifer system) isolates hydrological hazards from inland geomorphic or atmospheric hazards.
2
Evaluate the hydraulic mechanisms resulting from excessive groundwater pumping near ocean boundaries.
Excessive abstraction reduces hydraulic head in freshwater aquifers, creating a pressure gradient that enables dense marine saltwater to encroach inland into underground water tables.
Storm surges exacerbate this by depositing saltwater on permeable surface soils, contaminating freshwater supplies.
3
Select the option that correctly identifies this environmental degradation process.
The correct hazard is saltwater intrusion/salinization of freshwater coastal aquifers.
Other listed options describe slope movements, surface soil erosion, or atmospheric phenomena.

Anahtar Kavram

Saltwater Intrusion and Coastal Aquifer Degradation
Soru 80Soru

Complete the statement regarding global environmental initiatives by identifying the correct treaty.

Aşağıdaki boşlukları doldurun

The international environmental agreement adopted in 2001 to protect human health and ecosystems by restricting and eliminating the production of persistent organic pollutants (POPs) such as DDT and PCBs is the Convention.
Cevabı ve açıklamayı göster

Cevap

Stockholm
The Stockholm Convention on Persistent Organic Pollutants, adopted in 2001, is a global treaty intended to protect human health and the environment from toxic chemicals (POPs) that remain intact in the environment for long periods, become widely distributed geographically, and accumulate in the fatty tissue of humans and wildlife.

Adım Adım Çözüm

1
Analyze the environmental target specified in the stem.
The target involves persistent organic pollutants (POPs), specifically toxic chemicals like DDT and PCBs.
Different international treaties target distinct environmental hazards, such as hazardous waste, ozone depletion, or toxic chemicals.
2
Match the environmental target to its establishing global agreement.
The treaty established in 2001 in Sweden to eliminate or restrict POPs is the Stockholm Convention.
The Stockholm Convention specifically focuses on bioaccumulative and long-lasting toxic industrial chemicals and pesticides.

Anahtar Kavram

Stockholm Convention on Persistent Organic Pollutants (POPs)
Tahmini Süre:1m 0s
ÖncekiSayfa 4 / 5Sonraki
Environmental Conservation and Management Alıştırma Soruları — JAMB UTME — Sayfa 4 | Examkin