GEOLOGY

Detailed explanation-1: -Floods: a great flow of water over an area that is usually dry land. through which steam, lava and ashes erupt. Cause both destructive and constructive changes to landforms.

Detailed explanation-2: -Collection and analysis of data indicates that constructive forces include crustal deformation, faulting, volcanic eruption and deposition of sediment, while destructive forces include weathering and erosion.

Detailed explanation-3: -Examples of destructive forces are weathering and erosion. These forces tend to break down the features of the Earth’s surface. Destructive forces often result in the loss of existing types of land.

Detailed explanation-4: -Answer and Explanation: Constructive forces are processes that cause the Earth’s surface to build up or rise. Examples include depositions, earthquakes, faults, and volcanoes. Depositions: sediment that is moved from one area to another and builds in excess; sediment is carried by water, wind, and ice.