Most dust particles in your house are made from dead skin!
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
A cubic yard of air weighs about 2 pounds at sea level.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Nylon is made from coal and petroleum.
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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