The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Australia's Great Barrier Reef is 1,250 miles long!
45
The Atlantic Ocean is saltier than the Pacific Ocean.
54
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The Amazon rainforest produces more than 20% the world's oxygen supply.
182