Question
[106]. Passage: Greening a desert by planting trees sounds hopeful, but indiscriminate planting can harm fragile dryland ecology. Native grasses and shrubs, adapted to scarce rain, stabilise soil without draining scarce groundwater, while thirsty exotic trees may lower water tables and crowd out local species. Successful restoration therefore studies rainfall, soil and grazing pressure, protects natural regeneration, and plants only where water budgets allow. Green cover is a means to resilient livelihoods, not an end measured merely by counting saplings in a photograph. What is the main idea of the passage?
Option 4 : Desert restoration should favour native species and natural regeneration within water budgets, not indiscriminate tree planting.
Detailed Solution
सही उत्तर Desert restoration should favour native species and natural regeneration within water budgets, not indiscriminate tree planting. है।
The main idea summarises the passage's overall argument and recommendation.
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prepsnap.in • Mock TestQuestion:
[106]. Passage: Greening a desert by planting trees sounds hopeful, but indiscriminate planting can harm fragile dryland ecology. Native grasses and shrubs, adapted to scarce rain, stabilise soil without draining scarce groundwater, while thirsty exotic trees may lower water tables and crowd out local species. Successful restoration therefore studies rainfall, soil and grazing pressure, protects natural regeneration, and plants only where water budgets allow. Green cover is a means to resilient livelihoods, not an end measured merely by counting saplings in a photograph. What is the main idea of the passage?
Correct Answer: Desert restoration should favour native species and natural regeneration within water budgets, not indiscriminate tree planting.
The main idea summarises the passage's overall argument and recommendation.