Hypernyms (tenant is a kind of...): bearer; holder (the person who is in possession of a check or note or bond or document of title that is endorsed to him or to whoever holds it) Hyponyms (each of the following is a kind of tenant): cotenant (one of two or more tenants holding title to the same property)
Exposure from terrestrial radiation. The composition of the earth's crust is a major source of natural radiation. The main contributors are natural deposits of uranium, potassium and thorium which, in the process of natural decay, will release small amounts of ionizing radiation.-rays: X-rays are a form of radiation similar to gamma radiation but they are produced mainly by artificial means rather than from radioactive substances. Neutron radiation: Neutron radiation occurs when neutrons are ejected from the nucleus by nuclear fission and other processes.
As you can see, the major source of your radiation dose rate is due to natural sources, radon, cosmic radiation, and terrestrial radiation. Man made sources of radiation are completely swamped by these natural sources in most cases.his is radiation from outer space, from the Sun and other stars. It is partly blocked by the Earth's atmosphere, so the higher your altitude, the less air is present to stop it, and the higher the levels. It varies from around 25 mrem a year at sea level, to around 50 mrem a year if you live at an altitude of 1 mile.