Q18 of 59 Page 1

The activities of man had adverse effects on all forms of living organisms in the biosphere. Unlimited exploitation of nature by man disturbed the delicate ecological balance between the - living ' and non-living components of the biosphere. The unfavorable conditions created by man himself threatened the survival not only of himself but also the entire living organisms on the mother earth. One of your classmates is an active member of 'Eco-club' of your school which is creating. environmental awareness amongst the school students, spreading the same in the society and also working hard for preventing environmental degradation of the surroundings.

(a) Why is it necessary to conserve our environment?


(b) State the importance of green and blue dust-bins in the safe disposal of the household waste.


(c) List two values exhibited by your classmate who is an active member of Eco-club of your school.

(a) Conserving of environment is important because of following reasons:


1. To save the natural resources which are essential for survival such as air, water, soil etc.


2. To maintain stability in the ecosystem.


3. Environment provides various things such as air, wood, paper, medicines which are very important for survival. If environment is not conserved it can cause ozone depletion resulting in various harmful diseases.


(b) Green dustbins as well as Blue dustbins are very important as green dustbin is used to throw biodegradable waste and blue dustbin is for throwing non-biodegradable waste. Thus, they helps in keeping separate the biodegradable and non-biodegradable waste. It helps in proper disposing of both type of waste and recycling of materials.


(c) The values which have reflected by the classmate are the cooperative nature, concern for environmental issues, civic sense and sensitive.


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