A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The Atlantic Ocean is saltier than the Pacific Ocean.
54
More than 25% of the world's forests are in Siberia.
51
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

