GIVING 15 POINTS Which statement best describes how human activity has affected African savannas?

The overfishing of waterways has reduced the food sources for many species.
The overuse of grasslands for herding and farming has made the soil infertile.
The replanting of forests has reduced the amount of grassland.
The clearing of large areas of trees has destroyed forest environments.

its either b or d

Explanation:

but i think its more likely b

The overuse of grasslands for herding and farming has made the soil infertile.

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answer --

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