Last updated on July 20th, 2023 at 09:34 pm
What is afforestation?
Ans: Afforestation refers to the planting of trees in areas that are barren or have been deforested.
What is biodegradable waste?
Ans: Wastes that decompose easily are referred to as biodegradable waste.
Name two non-biodegradable waste.
Ans: Plastic and rubber are non-biodegradable wastes.
Define environment.
Ans: All living things and non-living things that exist naturally on earth make up the environment.
Multiple Choice Questions
Trees stabilize the soil and prevent soil erosion.
Wastes that are not biodegradable can be easily decomposed.
When harmful substances are mixed with the soil/air, it causes destruction of earth’s land surfaces. This is known as ……….. pollution
Which of the following means planting large numbers of trees?
……………. pollution can occur as a result of chemicals flowing in rivers.
Infertility of soil can be caused by ……………. Pollution.
When trees are cut down in large numbers, it is called ………..
Rubber is a ………… waste.
Wastes like plastic, polythene, rubber, and glass decompose or rot.
Among the three R’s of waste management, which one is not one?
………………. trees in large numbers is known as afforestation.
The release of harmful chemicals into rivers or oceans contributes ……………pollution
Forests are being destroyed to build cities, towns, and factories
A fruit peel is a ______________ waste.
Food waste, paper, and wood can be decomposed or rotted easily.
……………. pollution occurs when chemicals, gases, or particles enter the atmosphere, making it unfit for breathing.
MCQ on Pollution for Class 4
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