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.
Biological weathering occurs when something living interacts with the weathering processes, causing the rock to break down. Biological weathering can be considered a type of physical weathering. Sometimes biological weathering is referred to as the third type of weathering.