Question

what natural process is responsible for shaping mountains and valleys over time?
a. precipitation
b. condensation
c. photosynthesis
d. erosion

what term describes the breakdown of rocks by wind, rain, and temperature fluctuations?
a. erosion
b. weathering
c. photosynthesis
d. deposition

Explanation:

• For the first question: Erosion is the process that shapes mountains and valleys over time by wearing away rocks and soil. Precipitation is water falling from the atmosphere, condensation is water vapor turning to liquid, and photosynthesis is plants making food.
• For the second question: Weathering is the breakdown of rocks by wind, rain, and temperature. Erosion is the movement of eroded material, photosynthesis is for plants, and deposition is the laying down of eroded material.

Answer:

1. d. Erosion
2. b. Weathering