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Which statement best describes a negative effect of human activity on Africa's waterways?
O Dams have changed river flows, which has led to erosion.
O The use of rivers to water crops has led to droughts.
O Population growth has led to the destruction of rivers.
O The use of river transportation has harmed water quality.

Respuesta :

aceosbournel29

Answer: Dams have changed river flows, which has led to erosion.

Explanation:

312789

Answer:

O The use of river transportation has harmed water quality.

Explanation:

The rest of the options have effects that would have happened on their own over time anyways. Some of them Ern't much of our fault in fact. River transportation has had a dramatic impact though, and it is something humans are Indeed responsible for

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