Question

belles grandfather lives in a region where the temperature drops below 0°f at night. when belle visited her grandfather, they hiked up a hill. belle noticed that a lot of rocks had cracks in them. she also found quite a few rocks that had split into pieces. what most likely caused the rocks in this region to weather?

a. snowfall

b. frost wedging

c. landslides

d. heavy rains

Explanation:

Frost wedging occurs when water seeps into cracks in rocks, freezes (as the temperature drops below 0°F), and expands, causing the cracks to widen and rocks to break apart. Snowfall itself doesn't directly cause rock - weathering like frost wedging. Landslides are mass - movements of soil and rock and not the main cause here. Heavy rains don't explain the rock - splitting in a region with sub - zero temperatures at night as well as frost wedging does.

Answer:

B. frost wedging