Question

(a)what is sustainable development why it is necessary(b)what is water harvesting?list it four benefits?

Answer 1

Sustainable development means using up available resources without compromising the needs of the future generations. It is necessary for the future generations so that they couldn't find any difficulty in using resources.

Water harvesting means conserving water

Answer 2

sustainable dev. is the deve. that takes place without doing any harm to the future generations