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Answer:
A1.India's water crisis is often attributed to lack of government planning, increased corporate privatization, industrial and human waste and government corruption. In addition, water scarcity in India is expected to worsen as the overall population is expected to increase to 1.6 billion by year 2050.
A2.Generally vegetation is considered to decrease the ground water table because they need water to grow and produce food. So, they extract water.
However, if vegetation is selected in optimization technique such that they exist in a symbiotic relationship with water. They can help in recharge of ground water.
For example, intermediate trees can help in the recharge of ground water.
Since, vegetation cover helps to prevent water from runoff which result in the standing water which is ultimately absorbed by soil.
Moreover, vegetation cover provides soil surface which is permeable and helps water to percolate.
A3.The advantage of drip irrigation over sprinklers is that there is little water loss due to evaporation or runoff. It's particularly good for mulched areas because it can directly soak the soil without washing away the mulch.
A4.The conservation of water resources is a need of hour because: We know that the total composition of water is around 70% but the availability of freshwater resources is only 2%. ... So Water is one of the main valuable resources and must be used judiciously.
A5.Water is a renewable resource because it evaporates out of the oceans to clouds, which generate rain falling on the land. The water then runs into rivers and dams where it is used and the waste is partially cleaned before it makes its route to the sea, where the cycle begins again.
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