If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
The smell of freshly cut grass is actually a plant distress call.
31
German chemists made a replica of a trophy the size of one molecule.
68
No matter how cold it gets, gasoline will not freeze.
107
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Aluminum used to be more valuable than gold!
84