leaching of salts
erosion and silting
inflow of forest material
increased discharge rate
Answer is Wrong!
Answer is Right!
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.
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