Water pollution can have many different causes. Factories dump industrial waste into
and herbicides to kill weeds can also lead to water pollution. These factors cause
and rivers. Sewage from households is another cause. Farms using pesticides to kill
source' pollution while pollutants from storm water and the atmosphere result in 'nom
source'
po
of cholera and other diseases because of people drinking untreated water. Humans ca
Water pollution can have dramatic effects. In many poor nations, there are frequent ou
die if they drink contaminated water. Polluted water also causes the death of aquatic a
such as fish, crabs, or birds. Other animals eat these dead animals and may also get
addition, herbicides in water can kill aquatic plants and cause further damage
environment.
So what should we do to reduce water pollution?
1. What is groundwater?
2. What are point source pollutants?
3. What are non-point source pollutants?
4. Why do people use herbicides?
VI. Complete each sentence so it means the same as the sentence above. (2.5 poi