The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The smell of freshly cut grass is actually a plant distress call.
31
Iron weighs more after it rusts.
68
Most dust particles in your house come from dead skin.
48
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Hot water can freeze faster than cold water.
181
The average home creates more pollution than does the average car.
33
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118