Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One ragweed plant can release as many as one billion grains of pollen!
51
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The smell of freshly cut grass is actually a plant distress call.
31
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A ball of glass will bounce higher than a ball made of rubber.
73
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Diamonds can be shattered with a hammer.
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