4.Water scarcity causes climate change directly.
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5.Low quality drinking water creates a health problem in many developing countries.
A. 对
B. 错
6.Agriculture needs far more water than any other economic sector.
A. 对
B. 错
7.Urbanization is a factor that causes water shortage.
A. 对
B. 错
8.Raising public awareness of the water problem is the first thing you can do toward its solution.
A. 对
B. 错