One ragweed plant can release as many as one billion grains of pollen!
51
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The smell of freshly cut grass is actually a plant distress call.
31
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16