leaching of salts
erosion and silting
inflow of forest material
increased discharge rate
Answer is Right!
Answer is Wrong!
The correct answer is: B. erosion and silting.
Deforestation in the uplands may cause pollution in rivers through erosion and silting. When trees are removed, the soil is exposed to the elements and can be easily washed away by rain or wind. This soil can then clog rivers and streams, making it difficult for fish and other aquatic life to survive. Erosion can also lead to the deposition of sediment downstream, which can damage crops and infrastructure.
The other options are incorrect because:
- Leaching of salts is a process that occurs when water dissolves minerals from the soil and carries them away. This can happen in both forested and deforested areas.
- Inflow of forest material is the process of trees and other plants falling into rivers and streams. This can happen in both forested and deforested areas.
- Increased discharge rate is the process of rivers flowing faster after heavy rains. This can happen in both forested and deforested areas.