Horses, zebras, and donkeys are all different species. they are believed to have come from one common ancestor and just become more and more different due to their different environmental conditions. these animals may have evolved by

The animals evolved from the habitat they live in . Because the air around them always changes.

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.