How scanity of rainfall is responsible for depletion of water table?
Answers
Water scarcity is the lack of sufficient available freshwater resources to meet water demand. It affects every continent. It is manifested by partial or no satisfaction of expressed demand, economic competition for water quantity or quality, disputes between users, irreversible depletion of groundwater, and negative impacts on the environment.
Half of the largest cities in the world experience a scarcity of water.
The two main causes of Depletion of Water Table are Deforestation and Over-pumping of groundwater.
Deforestation
Deforestation means to clear the forest land by cutting the trees and shrubs and converting it into a commercial or a residential land. It has an adverse effect on the water table. Forests transport large quantities of water into the atmosphere via plant transpiration.
Over-pumping of groundwater
Groundwater is water which seeps into the ground and gets collected. This groundwater can be obtained by drilling or digging wells or by pumping. Over-pumping of groundwater reduces the level of groundwater level. Excessive pumping in coastal areas can cause saltwater to move inland and upward, resulting in saltwater contamination of the water supply.