Question
[114]. Passage: Cities can be several degrees hotter than surrounding countryside because concrete and asphalt absorb heat, vegetation is scarce, and waste heat from vehicles and air conditioners accumulates. Night brings little relief when buildings radiate stored heat, endangering elderly residents and outdoor workers. Planting trees, preserving water bodies, using reflective roofs and designing ventilation corridors can lower temperatures, but isolated parks help little if surrounding streets remain sealed. Cooling a city is therefore a matter of connected green and blue networks, not of a few decorative plots. What is the main idea of the passage?
Option 3 : Urban heat must be reduced through connected green-blue networks and reflective design, not isolated decorative parks.
Detailed Solution
सही उत्तर Urban heat must be reduced through connected green-blue networks and reflective design, not isolated decorative parks. है।
The main idea summarises the passage's overall argument and recommendation.
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prepsnap.in • Mock TestQuestion:
[114]. Passage: Cities can be several degrees hotter than surrounding countryside because concrete and asphalt absorb heat, vegetation is scarce, and waste heat from vehicles and air conditioners accumulates. Night brings little relief when buildings radiate stored heat, endangering elderly residents and outdoor workers. Planting trees, preserving water bodies, using reflective roofs and designing ventilation corridors can lower temperatures, but isolated parks help little if surrounding streets remain sealed. Cooling a city is therefore a matter of connected green and blue networks, not of a few decorative plots. What is the main idea of the passage?
Correct Answer: Urban heat must be reduced through connected green-blue networks and reflective design, not isolated decorative parks.
The main idea summarises the passage's overall argument and recommendation.