The chemical or mechanical process by which rock is gradually broken down eventually becoming soil

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

Why are shark population in decline worldwide?

Which region was the hearth for the largest number of agricultural animals such as pigs sheep and cows