A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Indoor pollution is 10 times more toxic than outdoor pollution.
62
According to studies, men change their minds two to three times more often than women.
72
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Scientists aren't sure what color dinosaurs were.
312
Research indicates that plants grow healthier when they are stroked.
173
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