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Zorluk: KolayPassage Assumptions and Underlying Premises

Read the following passage carefully:

To fortify coastal communities against increasing cyclone frequencies and storm surges, several state governments have recently launched large-scale mangrove restoration drives along sensitive ecological belts. Proponents of this ecosystem-based adaptation strategy emphasize that mangrove forests naturally attenuate wave energy, stabilize shoreline soils, and reduce flood damages far more cost-effectively than concrete seawalls. Consequently, state disaster management authorities are reallocating a significant portion of their structural defense budgets toward coastal wetland reforestation and local community-led nursery management. By shifting focus from heavy engineering solutions to living shorelines, administrators aim to secure long-term disaster resilience while simultaneously restoring local marine biodiversity.

Which one of the following crucial assumptions underlies the author's argument for reallocating disaster management funds toward mangrove restoration?

  1. The targeted coastal belts possess ecological conditions that allow restored mangroves to establish and grow effectively.Cevap
  2. B
    Concrete seawalls provide no protection whatsoever against severe storm surges and coastal floods.
  3. C
    Coastal fishing communities currently possess higher annual household incomes than inland agricultural communities.
  4. D
    Mangrove forests attenuate wave energy and reduce flood damage more cost-effectively than concrete seawalls.

Cevap

The argument relies on the assumption that the targeted coastal belts possess ecological conditions that allow restored mangroves to establish and grow effectively.
The correct answer identifies the fundamental prerequisite for the author's proposal. For mangrove restoration to serve as a viable alternative to concrete seawalls, the targeted coastal areas must actually support mangrove survival and growth. Negating this claim invalidates the entire plan.

Adım Adım Çözüm

1
Identify the author's main conclusion
State disaster management funds should be reallocated from concrete seawalls to mangrove restoration to achieve cost-effective coastal resilience.
Understanding the core conclusion is essential before identifying unstated premises.
2
Apply the negation test to candidate assumptions
Negating the statement 'The targeted coastal belts possess conditions allowing mangroves to grow' yields 'The targeted coastal belts cannot support mangrove growth'.
If mangroves cannot grow in these belts, the restoration drive cannot attenuate wave energy or reduce flooding, causing the author's conclusion to collapse.
3
Distinguish between explicit statements and underlying assumptions
The relative cost-effectiveness of mangroves is explicitly stated in the text, whereas the biological viability of mangrove growth in those specific belts is an implicit prerequisite.
Assumptions are unstated logical bridges necessary for the conclusion to hold true.

Anahtar Kavram

Identifying Unstated Premises using the Negation Test
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