Radioactive decay, also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting radiation. A material that spontaneously emits such radiation â which includes alpha particles, beta particles, gamma rays and conversion electrons â is considered radioactive.
Best Answer: Four of the larger Australian deserts are the Great Victoria Desert, the Gibson Desert, the Tanami Desert and the Great Sandy Desert. That accounts for most of the west of the continent, nearly two-thirds. Name four states that would be included in at least one of the North American deserts.
Australia is so large that its climate varies. The greater part of the continent is desert or semi-arid. Only the south-east and south-west corners have a temperate climate and moderately fertile soil.The northern part has a tropical climate, varied between tropical rainforests, grasslands, and part desert. Australia's climate is governed by the hot, sinking air of the subtropical high pressure belt.This moves north and south with the seasons, so that the rainfall pattern over Australia is highly seasonal. Australia's rainfall is the lowest of the seven continents (besides Antarctica).ustralia is so large that its climate varies. The greater part of the continent is desert or semi-arid. Only the south-east and south-west corners have a temperate climate and moderately fertile soil.