One ragweed plant can release as many as one billion grains of pollen!
51
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Balsa wood is classified as a hard wood!
41
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Iron weighs more after it rusts.
16
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
The earth is approx. 6,588,000,000,000,000,000 tons.
175