What are the systems that affect earths position and features

The systems that affect the earth position and features include : 1). The components of earth physical system, that is, atmosphere, litho sphere, biosphere and hydosphere. 2). The earth - sun relationship 3). The physical processes that are continually ongoing, e.g water cycle, carbon cycle, weathering,mass wasting, etc.

Answerdistinguish between the mercalli scale and the richter scale;