Question

which two processes involve the flow of solar energy through the earth system?

a. the growth of green plants

b. the cooling of earth’s surface

c. the evaporation of water

d. the heating of earth’s core

Explanation:

1. Analyze Option A: The growth of green plants (photosynthesis) uses solar energy to convert carbon dioxide and water into glucose and oxygen. So this process involves solar energy flow.
2. Analyze Option B: The cooling of Earth’s surface is a release of heat (not related to solar energy input, rather heat loss). So this is not a process involving solar energy flow.
3. Analyze Option C: The evaporation of water requires heat energy, and the main source of heat for evaporation on Earth's surface is solar energy (solar radiation heats water bodies, leading to evaporation). So this process involves solar energy flow.
4. Analyze Option D: The heating of Earth’s core is due to radioactive decay and residual heat from Earth's formation, not solar energy. So this is not related to solar energy flow.

Answer:

A. The growth of green plants, C. The evaporation of water