The freezing and thawing action of water affects a rock by?
a. transforming the rock into igneous rock
b. chemically changing the rock
c. gradually breaking down the rock into smaller pieces
d. leaving behind sendimentary particles from evaporated solutions

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.

All of them are man made

D. peatlands,grassland,swamps