What are agents of physical weathering? Choose all that apply.

Question

plants

ice (the cycle of freezing and thawing)

water (liquid)

acid

Answer 1

The agents of physical weathering include:

1. Plants - They can contribute to physical weathering through root growth, which can crack rocks.

2. Ice (the cycle of freezing and thawing) - This is a significant process in physical weathering, as water expands when it freezes, causing rocks to fracture.

3. Water (liquid) - While water itself is often associated with chemical weathering, it can also contribute to physical weathering through processes like erosion and hydraulic action.

Acid does not contribute to physical weathering; it is primarily associated with chemical weathering processes.

So, the correct answers are:

• Plants
• Ice (the cycle of freezing and thawing)
• Water (liquid)