The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The only letter not appearing on the Periodic Table is the letter "J".
180
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
One ragweed plant can release as many as one billion grains of pollen!
51
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Iron weighs more after it rusts.
16
Sound at the right vibration can bore holes through a solid object.
134
The average home creates more pollution than does the average car.
33