Relate the words Extrusive and Intrusive to the words Exterior and interior. Explain how the meanings of these words help you understand each type of igneous rock.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.