Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
Pure water (H2O) does not conduct electricity on its own.
46
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Scientists aren't sure what color dinosaurs were.
312
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108