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.
The desert is important because it covers about a fifth of the earth's surface! There are both hot and cold deserts. Antarctica is the largest desert in the world, while the Sahara in Africa is the largest of the hot deserts.There are also deserts close to Santa Barbara, such as the Mojave the Colorado Desert which encompass parts of Southern California.utside the U.S. hot, dry deserts are found in the Southern Asian realm, South and Central America, Ethiopia and Australia. Another type of desert is the coastal desert, for example, the Atacama Desert in Chile of South America.