Describe three ways in which humans may intervene in the water cycle, and the effects of these interventions?

Question

This is associated with the water cycle.

Answer 1

By stopping the pollution of fresh water lakes and rivers, by minimising water consumption and by researching better solutions for recycling of water.

These steps will minimise the damage to the water cycle and will help improve the quality of life for all beings.

Answer 2

first we can catch all runoffs to infitrate its in underground spaces before its go to the sea

like that:
http://www.dailymotion.com/jeandb/video/x15f8f_reportage-biefs-du-pilat

after , no more problems