Clear-cutting causes flooding and
a. smog.
c. thermal pollution.
b. acid rain.
d. erosion.

d. erosion.

Explanation:

Deforestation or deforestation is a process usually caused by human action, which destroys the forest area, is directly caused by the action of people on nature, mainly due to logging or burning by the industry timber, as well as for obtaining land for agriculture, mining and livestock.

Deforestation ravages the forests and forests of the Earth in a massive way, causing immense damage to the quality of the soil. Forests still cover around 30% of the world's regions.

good question. i'll be looking into that. (this is a joke sir)