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two millon years ago
Particles of sand are simply small rocks or pieces of minerals which can be from many different sources, and be of many different types.
17
it depends on how much heat particles are in the water and air ? and because water is a fluid so the particles are closer together not letting as many particles in as air with has more spaced out particles letting more heat particles in
A 22.5 gram sample of ammonium carbonate contains 4.5 moles of ammonium ions.
over a millon over a millon
the mole is 30 g.
Six.
Six of them.
6
8 millon a year :( 8 millon a year :(
150
Seven digits.
a millon
1,000
1 millon
200 millon