You are exercising on a hot day. Your body temperature goes up. You begin to sweat. The sweat cools your body. Sweating is an example of:

A. Input.
B. Process.
C. Output.
D. Feedback.***

I think D?

The answer is Feedback. I took the test just now.

it is d!

Poor question. One could argue B, and C also.

It is d

Yes, you are correct! Sweating is an example of feedback. Feedback is when the output of a process is sent back as input, creating a continuous loop of information. In this scenario, as your body temperature rises during exercise on a hot day, your body reacts by sweating. Sweating helps to cool your body down, which is a response to the increase in temperature. This feedback loop of sweating helps to maintain your body's temperature within a normal range.