Question

Select the correct answer.

which scenario is an example of a negative feedback loop?
a. when body temperature increases sweat is produces as a cooling agent to lower body temperature.
b. in some parts of the world, birth rates are far exceeding death rates, which has led to overpopulation.
c. ice reflects sunlight much better than water. a warmer atmosphere is turning ice to water, which is absorbing more of the sun's energy.
d. a warmer atmosphere is leading to warmer oceans. a warm ocean releases more carbon dioxide, which traps more heat in earth's atmosphere.

Answer 1

a. when body temperature increases sweat is produces as a cooling agent to lower body temperature.

Step-by-step explanation:

The scenario that is an example of a negative feedback loop is when body temperature increases, sweat is produced as a cooling agent to lower body temperature. In this scenario, an increase in body temperature triggers a response that counteracts the initial change and brings the body temperature back to its normal level. This is an example of a negative feedback loop, in which a change in a system triggers a response that counteracts the initial change and restores the system to its original state.

The other scenarios listed are not examples of negative feedback loops. In scenario b, birth rates far exceeding death rates is not countered by a response that restores the population to its original level. In scenario c, the melting of ice is not countered by a response that restores the ice. In scenario d, the release of carbon dioxide is not countered by a response that restores the carbon dioxide levels in the atmosphere.