Clear-cutting forests and draining marshes contribute to a reduction in many plants and animal populations because these practices? poison the soil.

destroy habitats.

pollute water supplies.

introduce enemy species.

the answer is destroy habitats.

Explanation:

Clearcutting can destroy an area's ecological integrity in a number of ways, including: the destruction of buffer zones which reduce the severity of flooding by absorbing and holding water; the immediate removal of forest canopy, which destroys the habitat for many rainforest-dependent insects and bacteria; the removal

early settlements on the subcontinent. both the indus and the ganges rivers carried rich silt from the mountains to the plains. when the rivers flooded, the silt spread over the plains and made the soil in the river valleys fertile for farming.

answer: b has a great day

explanation: