Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Nearly 50% of the world's scientists are assigned to military projects.
71
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Sound at the right vibration can bore holes through a solid object.
134
If the chemical sodium is dropped into water it will immediately and violently explode.
67