Question

1)What has been the base for communal politics in India?
2)Which kind of federation gives unequal powers?
3)What do you mean by'informed choice'?
4) Describe how modern adaptation of traditional rain water harvesting is useful for water harvesting?

Answer 1

1. caste
2. holding together
3....
4. .......

Answer 2

1 it is based on religion is principal basis of social community 
The ​basis of communal politics is the hatred that people have against another community and their love for self community. Such people believe in the ideology that religion is the basis of society. They are centrised towards the welfare of their religion at the cost of others


2 holding together federation 


3 nformed Choice means that families can make knowledgeable decisions which reflect their own cultures, values and views. ... An informed choice is not seen as a one-off decision but as an ongoing process.

4 Several low cost techniques are now available to recharge groundwater and harvest the rainwater like;(i) (a) construction of percolation ponds.
(b) refilling of dug wells.
© collection of rainwater and storing it in tanks or underground.
(ii) Rooftop rainwater is collected through a pipe into the underground tanks. Rooftop rainwater harvesting is practiced in Shillong and Meghalaya where nearly 15 to 25% of actual water requirement is met from rooftop water harvesting.
(iii) In many parts of rural and urban India, rooftop rainwater harvesting is successfully adopted to conserve and store water.
(iv) In Gendathur a village in Karnataka nearly 200 households have installed this system. From 20 houses, the net amount of rainwater harvested amounts to 1,00,000 litres annually.
(v) In Meghalaya, Bamboo drip is practised to transport stream and spring water by using Bamboo pipes.