Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Sound at the right vibration can bore holes through a solid object.
134
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Diamonds can be shattered with a hammer.
-104
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9