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
Indoor pollution is 10 times more toxic than outdoor pollution.
62
The average temperature at 40,000 feet above sea level is -60 F.
56
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Nylon is made from coal and petroleum.
42
According to studies, men change their minds two to three times more often than women.
72
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71