4. Earth's Energy Budget describes the in- and out-flow of heat energy from the Sun to Earth's surface. Which of the following options best describes how
greenhouse gases influence this budget?
A. Earth surfaces absorb incoming heat energy and re-emit it back to gases
in the atmosphere.
B. Some incoming heat energy gets scattered and reflected back to space by
clouds and particles in the air, including gases.
C. Re-emitted heat energy from Earth's surface is absorbed by gases in the
atmosphere and then re-emitted in all directions.
D. Gases in Earth's atmosphere dissolve in oceans, and absorb the heat
energy from the Sun that the oceans receive.