Respuesta :
The author’s overall claim in the passage is D. Efforts must be taken to conserve water.
A claim simply means a statement where a writer presents an assertion as being truthful in order to substantiate an argument. It is also the central idea that is in a paragraph.
According to the passage, it was stated that it's important for people to conserve water. Wastage of water is bad. Conservation of water enhances sustainability.
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