According to the scientists the earth can end by the global warming which will melt the Antarctic glacier and hence the level of the ocean will raise and the country which is also an island such as Australia will sumerdge into the water. But not only Australia also other country which is near or far from the ocean.The earth can also destroyed by the excessive heat of the sun. Scientist believe that after 5 or 10 years the earth will be so hot that it will be impossible for the living organisms to live in earth.