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

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

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.

C

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.

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cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!