Europe is the only continent without a desert.
62
One cubic mile of seawater contains about 50 pounds of gold.
79
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The Atlantic Ocean is saltier than the Pacific Ocean.
54
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63