Answer:
Oxygen
Explanation:
The earth has been divided into three major categories crust, mantle, and core which are further segregated into sub-parts. Since the crust is the outermost layer of the shell, the outer crust of the earth consists of a combination of silicon and oxygen in the majority followed by some percentage of other metals as well. <u>The percentage of Oxygen includes nearly 50% i.e. 46.6% followed by 27.7% of Silicon and the other 25.3 % includes aluminum, iron, sodium, magnesium, etc</u>. Thus, '<u>oxygen</u>' is the correct answer.
The difference is that machines transform energy to do work, while mechanisms so not necessarily perform this function.
Co-Creation Theory
One idea says the Earth and Moon formed
side-by side out of the same dust and gas. Over time, their close
proximity might have caused the Moon to fall into orbit around Earth.
Why: Makes logical sense... and i have always known this one theory...
-Lex
Atoms usually engage in chemical reactions which will end in complete outer electron shells. Most of the time, a complete outer shell usually means 8 electrons, except for a couple light elements which only require 2 electrons to have a whole outer shell.
Fishing, Water Skiing, or Motorboat usage.