One ragweed plant can release as many as one billion grains of pollen!
51
Iron weighs more after it rusts.
68
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
One barrel of petroleum holds 42 gallons.
20
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Each day, up to 150 species of life become extinct.
-23
Most dust particles in your house come from dead skin.
48