D. Answer the following questions in briet.
1. How much of the surface of earth is covered by water?
2. Name three sources of fresh water.
3. State the effect of deforestation on rainfall.
4. State two reasons that are leading to clearing of forests.
5. State one utility of dams.
questions.
Answers
Answer:
1. 71 percent
2. rivers, lakes and streams.
3. Deforestation causes increases in temperatures and changes in the amount and distribution of rainfall —generally creating a drier climate. These impacts can affect soil moisture, reducing yields in some areas and increasing flooding in others.
4. Natural causes as hurricanes, fires, parasites and floods.
Human activities as agricultural expansion, cattle breeding, timber extraction, mining, oil extraction, dam construction and infrastructure development
5. Deforestation causes can either be direct or indirect. Among direct causes are: Natural causes as hurricanes, fires, parasites and floods. Human activities as agricultural expansion, cattle breeding, timber extraction, mining, oil extraction, dam construction and infrastructure development.