Question

Difficulty: MediumIdentification of Main Idea and Supporting Details

Read the passage below carefully:

Urban agriculture is rapidly transforming municipal food security across sub-Saharan Africa. In cities like Ibadan and Dar es Salaam, rooftop gardening and backyard farming provide fresh produce to low-income households while reducing urban heat island effects. Proponents emphasize that localized cultivation reduces dependency on fragile rural supply chains and lowers transportation emissions. However, agricultural economists caution that widespread urban farming faces severe challenges, including soil contamination from industrial runoff and insecure land tenure. Despite these logistical hurdles, municipal authorities are beginning to integrate urban farming zones into master urban plans, recognizing its dual benefit of environmental resilience and economic relief.

Match each statement from the passage on the left with its correct structural role in the argument on the right.

  • Urban agriculture is rapidly transforming municipal food security across sub-Saharan Africa.Central Thesis (Main Idea)
  • Rooftop gardening and backyard farming provide fresh produce to low-income households while reducing urban heat island effects.Supporting Evidence / Specific Benefit
  • Widespread urban farming faces severe challenges, including soil contamination from industrial runoff and insecure land tenure.Counter-argument / Major Challenge
  • Municipal authorities are beginning to integrate urban farming zones into master urban plans.Policy Response / Concluding Implication

Answer

1. 'Urban agriculture is rapidly transforming municipal food security across sub-Saharan Africa.' matches 'Central Thesis (Main Idea)'; 2. 'Rooftop gardening and backyard farming provide fresh produce...' matches 'Supporting Evidence / Specific Benefit'; 3. 'Widespread urban farming faces severe challenges...' matches 'Counter-argument / Major Challenge'; 4. 'Municipal authorities are beginning to integrate urban farming zones...' matches 'Policy Response / Concluding Implication'.
The passage is structured logically starting with its central thesis on urban agriculture transforming municipal food security. It then supplies supporting evidence detailing specific local benefits, introduces a counter-argument emphasizing real-world constraints, and concludes with the policy response adopted by city planners.

Step-by-Step Solution

1
Identify the central thesis by looking for the sentence that summarizes the overall focus of the passage.
The opening sentence regarding urban agriculture transforming municipal food security expresses the main idea.
The main idea unifies all subsequent paragraphs and details in the text.
2
Distinguish specific supporting details from the central thesis.
The details about rooftop gardening, fresh produce, and heat island reduction substantiate the central thesis.
Supporting details elaborate on how or why the main idea operates in practice.
3
Locate qualifying arguments or challenges introduced in the text.
The mention of soil contamination and land tenure issues acts as a counter-argument highlighting obstacles.
Recognizing contrasting points prevents mistaking temporary qualifications for the main thesis.
4
Determine the concluding outcome or governance action described.
Municipal integration into urban plans reflects the concluding policy implication.
This shows the pragmatic real-world response resulting from the trends analyzed.

Key Concept

Distinguishing the main idea from supporting details, counter-arguments, and concluding statements in a non-fiction text.
Estimated Time:1m 30s
Rate this question