Water pollution can (1)_____ dramatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases (2)_____ of people drinking untreated water. Humans can even die if they drink contaminated water. Polluted water also causes the (3)_____ of aquatic animals such as fish, crabs, orbirds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and cause further damage to the (4)______.
4. A. soil B. air C. noise D. environment
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Sinh Học lớp 12
