I cannot explain what is written cause this is science chapter can you help me to explain this in Hindi class 4

Dear Student,

As of now, we would only be able to provide support in English, hence, we request you to kindly cooperate.

Water scarcity refers to the shortage of water. Its main causes are, over-use of water, usage of pesticides, emissions of waste from industries into the rivers, lack of water management, lack of water treatment plants, ignorance of people, land forms and changes in climate.

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