Dams can alter river processes by: question 2 options: a. creating an artificial base level b. allowing sediment to be transported more easily c. allowing biologic migration d. creating a more efficient conduit for the transfer of fine sediment upstream

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

the match lol