There are two ways that a supernova happens. A Type I supernova occurs when a star accumulates too much matter from nearby stars. Eventually, this leads to a nuclear reaction. A Type II supernova occurs after a star runs out of nuclear fuel and the force of its own gravity becomes too much.
Zambezi River, bordering Zimbabwe and Zambia. Considered the largest waterfall in the world, Victoria Falls thunders obnoxiously in Southern Africa. A Scotsman named David Livingston discovered the falls around 1855 and named them after then-queen Victoria.
Angel Falls (the world's highest waterfall) is located in the Guiana Highlands; it stands at 2,421 feet, (751 m) or more than 12 times the height of America's and Canada's Niagara Falls.With over 10,000 rivers (mostly small) within its borders, the Orinoco is by far the most important.ngel Falls (the world's highest waterfall) is located in the Guiana Highlands; it stands at 2,421 feet, (751 m) or more than 12 times the height of America's and Canada's Niagara Falls. With over 10,000 rivers (mostly small) within its borders, the Orinoco is by far the most important.