Question

which describes a climate effect on the rate of weathering?
○ cold climates favor mechanical weathering.
○ chemical reactions occur slower at higher temperatures.
○ lower precipitation levels lead to more chemical reactions.
○ the chemical reaction rates of minerals are not impacted by temperature.

Explanation:

• Cold climates often have freeze-thaw cycles, which are a key form of mechanical weathering, making this statement correct.
• Chemical reactions speed up at higher temperatures, so the second option is incorrect.
• Higher precipitation (more water) enables more chemical weathering reactions, so the third option is wrong.
• Temperature directly impacts the rate of chemical reactions in mineral weathering, so the fourth option is incorrect.

Answer:

A. Cold climates favor mechanical weathering.