Australia's Great Barrier Reef is 1,250 miles long!
45
Even Antarctica has an area code. It's 672.
58
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The state of Florida is bigger than England!
74
There are approximately three chickens for every human on Earth.
13