Which of the following climates is most suited for physical weathering?
a. warm
b. hot
c. dry
d. cool

Physical weathering is a term used to refer to geological process of breaking of rocks without the change in their chemical composition. It may be due to many causes however ice wedges are a big factor in breaking of the rocks especially when water entered in the holes of the rocks expand when transformed to ice. Thus, the answer to this item is letter D. Cool.

The most appropriate answer is c. dry climates. In dry climates such as deserts the main type of physical weathering is exfoliation. In the daytime, rocks expand because of the high temperatures. regions with dry climates cool rapidly at nights. When this occurs the rocks contract. the continuous process over time cause rock to break of in layers or exfoliate.

Where are the choices?