Question

what is the cause of scarcity of water​

Answer 1

Explanation:

Overpopulation: Water scarcity may be an outcome of a large and growing population which results in greater demand for water and unequal access to it.

Commercialisation of agriculture: After the success of the Green Revolution farmers are producing commercial crops.

Answer 2

Water shortages may be caused by climate change, such as altered weather patterns including droughts or floods, increased pollution, and increased human demand and overuse of water. ... Water scarcity is being driven by two converging phenomena: growing freshwater use and depletion of usable freshwater resources.