Question

1. changes within the rock’s minerals that break down bonds holding the rocks together.

chemical weathering
erosion
deposition
physical weathering

1. all of the landforms on earth are constantly changing shape. what is most responsible for the changes in the landforms?

oceans
earthquakes
pollution
water erosion

Explanation:

1. Chemical weathering involves chemical changes in rock - minerals that break down the bonds holding rocks together. Erosion is the movement of rock and soil, deposition is the laying down of sediment, and physical weathering involves physical forces like temperature changes without changing the rock's chemical composition.
2. Water erosion is a major factor in changing landforms. Oceans are a large - scale feature but not the most direct cause of landform change. Earthquakes can cause sudden changes but are not as constant as water erosion. Pollution mainly affects the quality of the environment rather than directly changing landforms.

Answer:

1. Chemical Weathering
2. Water erosion