Question

A small rock lies on a slope near a tropical sea. What are three ways that the rock could be eroded?

1. During a rockfall, the rock could be carried down the slope.
2. Frost wedging could cause cracks in the rocks.
3. The heat of the sun could break down the rock.
4. Tall, powerful waves could carry the rock into the ocean.
5. The rock could react to seawater, break down, and be carried away by the sea.

Answer 1

Answer:

1. During a rockfall, the rock could be carried down the slope.

2.Tall, powerful waves could carry the rock into the ocean.

3.The rock could react to seawater, break down, and be carried away by the sea.

Answer 2

Answer:

The three ways in which the rock could be eroded are as follows:

1. During a rockfall, the rock could be carried down the slope.

4. Tall powerful waves could carry the rock into the ocean.

5. The rock could react to seawater, break down, and be carried away by the sea.

Explanation:

• Erosion of rocks is the phenomenon in which the small rock pieces are moved by natural forces.
• The major natural forces are water, wind, gravity, and ice.
• During a rockfall, the rock could be carried down the slope due to gravity.
• Tall, powerful waves could carry the rock into the ocean. Here, water acts as the natural force.
• The rock could react to seawater, break down, and be carried away by the sea. This shows that water is the natural force for erosion.