Indoor pollution is 10 times more toxic than outdoor pollution.
62
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
The storage capacity of human brain exceeds 4 Terrabytes.
140
Your brain is 80% water.
525