. 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 unfavourable conditions created by man himself threatend 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.         

 

Best Answer

Ans, (a) It is necessary to conserve our environment because- of the following reasons:

(i) To save natural resources like air, water and soil from pollution which are essential for our survival.

 (ii) To maintain ecological balance in nature.

(iii) The environment provides us. fresh air to breathe, a number of useful product

such as wood, paper, medicines, etc. The ozone layer of the environment alsc protects from harmful ultraviolet radiations from the sun.

(b) Green dustbins are used for biodegradable wastes, and Blue dustbins are used for non-biodegradable wastes. Importance of two types of dustbins:

(i) Disposal of wastes after separating them into biodegradable and non-biodegradable wastes in separate dustbins and treating wastes properly before dumping in landfills.

(ii) Segregation of biodegradable and non-biodegradable wastes occur withou wasting time and energy.

(c) Values: Cooperative spirit, concern about enviro11111ent, civic sense, sensitive human being.

 

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