The average home creates more pollution than does the average car.
33
One barrel of petroleum holds 42 gallons.
20
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Pure water (H2O) does not conduct electricity on its own.
46
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The earth is approx. 6,588,000,000,000,000,000 tons.
175