Diamonds can be shattered with a hammer.
-104
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Each day, up to 150 species of life become extinct.
-23
The average home creates more pollution than does the average car.
33