In 1850, only 8% of the people in California were women.
0
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The Sahara desert expands at about 1km per month.
90
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
It's still possible to see the division between East and West Germany due to different light bulbs.
5
More than 25% of the world's forests are in Siberia.
51
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Israel's Dead Sea is 1,312 feet below sea level.
48