Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Aluminum used to be more valuable than gold!
84
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Iron weighs more after it rusts.
16
Most dust particles in your house are made from dead skin!
67
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17