The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The water of the Antarctica is so cold that nothing can rot there.
334
The state of Florida is bigger than England!
74
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
More than 25% of the world's forests are in Siberia.
51
The Sahara desert expands at about 1km per month.
90