What are some clues you might use to make inferences?

Incomplete question. Provided a general definition of the term.

Explanation:

To make an inference usually involves a mental activity for the purpose of making sound judgments based on observations or clues discovered.

For example, common clues when doing biological experiments includes:

b. regulated is the actual answer to your question.

explanation:

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.