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:

In cold climates, water - ice cycles cause mechanical weathering as water freezes and expands in rock crevices. Chemical reactions generally occur faster at higher temperatures, so the statement about slower reactions at higher temperatures is incorrect. Lower precipitation reduces the availability of water for chemical reactions, not increases them. Chemical reaction rates of minerals are affected by temperature.

Answer:

Cold climates favor mechanical weathering.