From the Gizmo video, The influence of greenhouse gases, such as carbon dioxide, on temperature is called the greenhouse effect. Based on what you’ve learned, how do greenhouse gases affect the heat flow into and out of Earth’s atmosphere?
A. When greenhouse gases are high, heat flow out of the atmosphere is lower. This traps heat in the atmosphere, which raises the Earth’s temperature.
B. When greenhouse gases are low, heat flow out of the atmosphere is higher. This releases heat out of the atmosphere, which lowers the Earth’s temperature.
C. Greenhouse gases actually have no effect on Earth’s temperature.
D. Both A and B are correct.