4.
How does river water get polluted? Explain.
5.
Identify any three ecological problems caused by building large dams.
E. Answer the following questions.
346
Explain any five factors responsible for the formation of soil.
2.
What is meant by land use pattern? Why is it important to study the land use pattern? List the factors
influencing the utilisation of land.
What are Multipurpose River Valley Projects? Name any two such projects. List the main objectives of a
3.
multipurpose river valley project.
1.
4.
Suggest any five steps to conserve soil.
5.
Suggest any five methods for the conservation of water
Answers
Answered by
0
Explanation:
Many substances that are hazardous to human health can enter water supplies. Chemical waste from factories is sometimes dumped into rivers and lakes, or directly into the ground. Pesticides (chemicals that kill insects) applied to farmland enter surface water and groundwater, often in large quantities. Leaks from underground storage tanks for liquids like gasoline go directly into groundwater. Salt put on icy roads in winter pollutes water also, although it is not as hazardous to health.
FOLLOW ME AND MARK MY AMSWER AS BRAINLIST
Similar questions