If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The Atlantic Ocean is saltier than the Pacific Ocean.
54
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The Caspian Sea is also classed as the world's largest lake.
52
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The average ice berg weighs 20,000,000 tons!
54