Sound travels about 4 times faster in water than in air.
408
One ragweed plant can release as many as one billion grains of pollen!
51
The smell of freshly cut grass is actually a plant distress call.
31
One barrel of petroleum holds 42 gallons.
20
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155