Question

choose which type of weathering each process is demonstrating (4 points)
chemical weathering physical weathering

Explanation:

To solve this, we analyze each weathering process:

1. Frost Wedging

Frost wedging occurs when water freezes in rock cracks, expands, and breaks the rock. This is a physical weathering process (no chemical change, just mechanical breakdown).

2. Carbonation

Carbonation involves the reaction of carbon dioxide (from air/water) with minerals (e.g., limestone) to form new compounds (e.g., carbonates). This is a chemical weathering process (chemical reaction changes the rock’s composition).

3. Oxidation

Oxidation is the reaction of minerals (e.g., iron - rich minerals) with oxygen, causing rust - like changes (e.g., iron oxide formation). This is a chemical weathering process (chemical reaction alters the rock).

4. Exfoliation

Exfoliation happens when rocks expand/contract due to temperature changes, causing layers to peel off. This is a physical weathering process (mechanical breakdown without chemical change).

Answer:

s (matching each process to its weathering type):

• Frost Wedging: physical weathering
• Carbonation: chemical weathering
• Oxidation: chemical weathering
• Exfoliation: physical weathering