now it is being polluted by toxic gasses and carbon dioxide and tearing the atmosphere apart
Altitude differences
Elements.
Earth's atmosphere is almost 200 times thicker than the atmosphere of Mars. The atmosphere of Earth is primarily nitrogen and oxygen, while the Martian atmosphere is primarily carbon dioxide.
Same
less
We get weathered by being on or near the surface and exposed to environments different than we were formed in.
physical change
physical change
Underground crystals are bigger where as crystals formed on the surface are smaller.
they are formed by atoms of different types mixing together
Compounds are formed when different types of atoms are bonded together. For example, water is formed by the chemical bonding between hydrogen and oxygen.
because they formed first along with the layers inside the earth