Why is the process of erosion important to dome mountains? 1- Erosion unearths igneous rocks found in the middle of the mountain.

2- Dome mountains can only be made through erosion of water.

3-Erosion affects the chemical make up of dome mountains.

4-The size of a dome mountain is determined only by erosion.

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.