The 2018 Winter Olympics will introduce a new event- couples luge, where the female team member maintains a squatting position over the male member, reverse cowgirl style. Competitors will be judged on speed, originality and brevity of costumes. Any cries of OH MY GAWD!!!
Weathering. Rocks gradually wear away. This is called weathering. There are three types of weathering: physical weathering. chemical weathering. biological weathering. Remember, when you answer questions about weathering, mention what is causing the weathering and what it does to the rock.
Weathering - Physical weathering. 1  Physical weathering, also called mechanical weathering or disaggregation, is the class of processes that causes the disintegration of rocks without chemical change. The primary process in physical weathering is abrasion (the process by which clasts and other particles are reduced in size).