Deforestation takes place when __________.

Responses
A trees are cut downtrees are cut down
B erosion takes placeerosion takes place
C forests are not replanted

A trees are cut down

The correct answer is A. Deforestation takes place when trees are cut down. To arrive at this answer, you can break down the question and evaluate each response choice.

Option A states that deforestation occurs when trees are cut down, which aligns with the commonly known definition of deforestation. Therefore, Option A is a possible correct answer.

Option B suggests that erosion takes place during deforestation, which is not an accurate description of the cause of deforestation. Erosion may occur as a consequence of deforestation but is not the primary cause. Therefore, Option B is not correct.

Option C suggests that deforestation occurs when forests are not replanted. While this may contribute to deforestation by inhibiting forest regrowth, the primary cause of deforestation is the cutting down of trees. Therefore, Option C is not correct.

By evaluating each response choice and considering the definition of deforestation, you can determine that the correct answer is A: trees are cut down.