When rivers pick up rocks and sediment, they often hit and scrape against the river bed, wearing it away. Which of the four types of fluvial erosion is this

Which are practical examples of how people in the developed world could make a big difference in how much water they use check all that apply a. use lightbulbs that use less electricity b. consider using a composting toilet that does not use water c. avoid using your telephone during peak hours d. do not read books