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.

and I'll really appreciate if u can mark me brainliest

saint clair’s defeat, (november 4, 1791), one of the worst defeats ever suffered by u.s. forces in indian warfare, precipitated by british-indian confrontation with settlers and militia in the northwest territory following the american revolution. despite specific provisions in the treaty of 1783 for the evacuation of its forts on the northwestern border, britain had failed to yield these lucrative fur-trading posts. in hopes of reclaiming lost hunting grounds with british support, a northwest indian confederation was gradually molded between 1785 and 1787, consisting mainly of shawnee, delaware, ottawa, iroquois, ojibwa, miami, and potawatomi. kentucky frontiersmen reacted to this threat by initiating raiding parties on native villages as early as 1788, and indian warfare flared up the following year.