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!
21
Pumice is the only rock that floats on water.
14
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
The bark of an older redwood tree is fireproof.
65
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
One ragweed plant can release as many as one billion grains of pollen!
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