What are the methods of preventing or reducing soil erosion.
The following are some methods which can prevent or reduce soil erosion:
(i) Keeping the vegetation cover on the ground which reduces soil erosion by wind and water.
(ii) Avoid overgrazing.
(iii) Afforestation, the roots of trees check the flow of running water. Trees also check speed of strong winds. Thus, prevent erosion of soil.
(iv) Intensive cropping.
List any three human activities which would lead to an increase in the carbon dioxide content of air.
List water pollutants.
When do we use the term water pollution. Give examples.
What are the causes of soil erosion?
