Answer the following questions in about 30 words.

What is water scarcity and what are its main causes?

Water scarcity occurs when the availability of water is not enough to match the demand for it. This caused by over exploitation of water resources. Increase in population, deforestation, wastage of water, are a few examples. The ever-increasing populations' demand for water is also increasing which makes the water availability unequal. Water is also used for irrigation and industrial use. This also contributes a lot in water scarcity.