Question

Where is frost wedging most likely to occur?

A. An arctic region where the ground is permanently frozen
B. A tropical region that experiences year-round warmth and heavy rain
C. A temperate region that experiences multiple freezes and thaws each year
D. A desert region that experiences high temperatures and dry conditions

Answer 1

C

Step-by-step explanation:

Water ‘expands’ when its temperatures go below 4 degrees centigrade. Therefore, ice is larger in volume compared to liquid water. Therefore, when water gets into the crevices and cracks of rock in the ground, the cyclic thawing and freezing of the water put stress on the rock/ground hence wearing it and forming and even bigger gorges.

Answer 2

C. A temperate region that experiences multiple freezes and thaws each year

Step-by-step explanation:

Frost wedging is a form of physical weathering which involves physical breaking of a rock.

Frost wedging occurs in areas where there is extreme cold and rainfall round the year.

The repeated freezing and thawing of water that is found in the cracks of rocks referred to as joints, pushes the rock to the breaking point.