You could look under a microscope it see what type of minerals they have or substances they have that makes them one .!
Answer: It encourages scientists to give convincing evidence for the results
<span>F = E/d = 80 kJ/16 m = 5000 N </span>
Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa, which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.
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Hope it helps...</h2>
