Balsa wood is classified as a hard wood!
41
Research indicates that plants grow healthier when they are stroked.
173
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
German chemists made a replica of a trophy the size of one molecule.
68
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
One third of the electricity produced on earth is used to power electric light bulbs!
75
