What are surface processes

Earth's surface is constantly being shaped by flows of wind, water and ice. Geomorphology is the scientific study of earth surface processes, including the erosion, deposition and formation of landforms and sediments.

The four common Planet Surface Processes are: Cratering, Volcanoes, Erosion, and Weathering (chemical and physical)

Scientists believe that as many as 40 percent of those with depression can trace it to a genetic link. Environmental and other factors make up the other 60 percent. Research has also shown that people with parents or siblings who have depression are up to three times more likely to have the condition.

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