A runaway greenhouse effect is an example of ________.
A) a positive feedback mechanism
B) a negative feedback mechanism
C) the hydrologic cycle
D) a steady-state condition

Question

Quizplus · Accepted Answer

A runaway greenhouse effect is a positive feedback mechanism, meaning that the warming caused by increasing levels of greenhouse gases leads to further warming, exacerbating the effect. This is in contrast to a negative feedback mechanism, where a change is countered and stabilized by a response that goes in the opposite direction. The hydrologic cycle and steady-state conditions are not relevant to the concept of a runaway greenhouse effect.

A Runaway Greenhouse Effect Is an Example of ________