NCERT Solutions Curiosity Chapter 11 .8 Resources We Use — In-text Questions

Book page 22411 Updated on2026-09-05

Q1.
Can you list some alternatives for reducing air pollution?
Answer

Bhoomi and Surya could smell the difference the moment they reached the city — very few trees, and smoke from the vehicles. Here is what can be done about it.

AlternativeHow it reduces air pollution
Electric vehiclesThey do not release any smoke at all, as Amma explains in the story
CNG buses, autos and carsCNG is a cleaner fuel than petrol or diesel
Public transport, cycling and walkingOne bus replaces forty cars’ worth of smoke
Solar and wind electricityNo coal burnt, so no smoke from the power plant
LPG, natural gas or a solar cooker at homeFar less smoke than coal, firewood or dung cakes
Planting more treesTrees take in carbon dioxide, trap dust and cool the air
Stop burning garbage and crop stubbleCompost the waste instead of setting it on fire
Cover construction sites and sprinkle waterKeeps dust from rising into the air
Filters and chimneys in factoriesTrap smoke and ash before they reach the open air
Why the village air felt better: the village has many trees and few vehicles, so the air is fresh and cooler. A city has the opposite — that is not bad luck, it is the result of choices, and different choices can change it back.
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