Q33 of 805 Page 156

In agricultural practices, higher input gives higher yield. Discuss how?

It is correct to state that in agriculture practices higher inputs gives higher yield. Higher yield can be obtained by applying better farming methods, high quality seeds, higher yielding varieties, modern technologies, latest machinery. All these things require cost and knowledge of new techniques.


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What is a GM crop? Name any one such crop which is grown in India.

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If there is low rainfall in a village throughout the year what measures will you suggest to the farmers for better cropping?

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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.


OR


Why is AIDS considered to be a ‘Syndrome’ and not a disease?