Explain giving reasons
a) Balanced diet is necessary for maintaining healthy body.
b) Health of an organism depends upon the surrounding environmental conditions.
c) Our surrounding area should be free of stagnant water.
d) Social harmony and good economic conditions are necessary for good health.

Give reasons : Social harmony and good economic conditions are necessary for good health.

Give reasons : Health of an organism depends upon the surrounding environmental conditions.

Give reasons : Our surrounding area should be free of stagnant water.

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 threatened the survival not only of him but also of the entire living organisms on the mother earth. Rehan is an active member of 'Eco club' of his 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. As part of this awareness programme, they are explaining the importance of using different dustbing for biodegradable and non-biodegradable wastes. Generally green duslbing are for biodegradable wastes and blue for non-biodegradable wastes. Why is it necessary to conserve our environment?

Which is necessary for achieving good health? (a) Awareness about diseases (b)Proper disposal of waste (c ) Control of vectors (d) Maintenance of hygienic food and water

The activities of man had adverse effects on ail 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 threatened the survival not only of himself but also of the entire living organisms on the mother earth. One of your classmates is an active member of 'Eco dub' 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. Why is it necessary to conserve our environment?