From the suggested countries/regions, Australia is the one that has by far the most tourists. Australia is a popular tourist attraction and is sufficiently big enough to be able to accomodate big number of tourists. Some of the most popular tourist attractions in Australia are the Great Coral Reef, going on tours/safari in the vast Australian outback, visiting and witnessing the traditional way of life of the Aborigines, the beautiful beaches, the world famous opera house of Sydney etc.
Australia is a very special place for tourism because it offers a little of everything for any type of traveler. Whether you are an adventurer, ecologist, naturalist, scuba diver, urbanoid, scientist, or a type of person who demands the best in luxury and comfort, here you will find a little of each in different cities. The only thing you could call negative when traveling to Australia is the great distances between cities and tourist attractions that put the tourist in a sort of checkmate regarding decisions on which places to visit, how long to spend, and how to travel. It is a very large country full of interesting things to know.
If magma is thin and runny, gases can escape easily from it. When this type of magma erupts, it flows out of the volcano. ... If magma is thick and sticky, gases cannot escape easily. Pressure builds up until the gases escape violently and explode.
