Question

State four ways in which air can be conserved.

Answer 1

Four ways to conserve air are:

1. Planting more trees, as they absorb carbon dioxide and give out oxygen.
2. Using efficiently-designed smokeless stoves instead of burning coal or kerosene.
3. Using smokeless fuels, such as CNG (Compressed Natural Gas) and LPG (Liquified Petroleum Gas) in vehicles. Such fuels emit less harmful gases.
4. Scrubbing effluent gases, in factories and refineries, with water in chimneys before they escape into the atmosphere. This removes poisonous gases like sulphur dioxide and nitrogen dioxide.