Check your map! Virginia extends farther west than West Virginia.
67
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
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
Even Antarctica has an area code. It's 672.
58
One cubic mile of seawater contains about 50 pounds of gold.
79