18. What human activity can cause the siltation of rivers?
A. burning of plastics and other garbage
B. too many chemical fertilizers
C. too much mining and quarry
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18. What human activity can cause the siltation of rivers?
A. burning of plastics and other garbage
B. too many chemical fertilizers
C. too much mining and quarry
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Answer:
C
Explanation:
I think this is the answer
correct me if am wrong