CHAPTER 5: GREEN SKILLS - I

 CHAPTER 5: GREEN SKILLS - I

 1. What is the meaning of the word ‘environment’?      

The meaning of the word ‘environment’ is to encircle or surround.

2. Give any two definitions of environment

Environment is a surrounding, external conditions influencing development or growth of people, animals or plants and living or working conditions.

or

Environment refers to the sum total of conditions which surrounds man at a given point in space and time.

3. What are the various types of environment?

The various types of environment are biotic and abiotic.

4. What are natural resources?

Resources which are drawn from nature and used without much modification are called natural resources.

5. Differentiate between renewable and non-renewable resources.

Renewable resources are those which get renewed or replenished quickly (Ex: sunlight, air, water) while non-renewable resources are those which have a limited stock and once the stock is exhausted it may take thousands of years to get it replenished (Ex: coal, petroleum, mineral resources)

6. Suggest measures for conservation of soil

Soil can be conserved by Crop rotation, Terracing, Contour ploughing, Afforestation.

7. Suggest measures for conservation of minerals

Minerals can be conserved by reuse and recycling, use of modern efficient technology, use of CNG in vehicles, use of solar equipments.

8. Suggest measures to prevent soil pollution

Soil pollution can be controlled by the following methods

  • Use of proper waste disposal management
  • Say no to plastic
  • Proper disposal of hospital an industrial wastes
  • Compost organic wastes

9. Suggest measures to prevent water pollution

Water pollution can be controlled by the following methods

  • Treatment of industrial liquid waste before discharging in the drains
  • Proper drainage
  • Proper treatment and recycling of domestic sewage before discharging.
  • Control of oil spills in seas

 

10. Suggest measures to prevent air pollution

Air pollution can be controlled by the following methods

  • Curbing emission from motor vehicles
  • Using CNG in vehicles
  • Afforestation
  • Use of filters

11. Why do we need to conserve natural resources?

We need to conserve natural resources so that we as well as our future generations can use it.

12. What are the factors which cause imbalance in the environment?

The factors which cause imbalance in the environment are Land use changes, Constructions and excavations, Agricultural practices, Weather modification program and Nuclear programs.

13. What do you mean by green economy?

Green economy is the one that results in improved human well-being and social equity, while significantly reducing environmental risks and ecological scarcities.

 

 

 

 

 

 

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