The second issue of Food Security is now published, and is free online. It documents some of the multiple causes of food insecurity.
Helium can be found in underground deposits in the earth. Helium can also be found in stars and other planets. The helium underground - and extracted from natural-gas - is a by-product of the natural radioactive decay of uranium, though is far too stable to be radioactive itself. It also occurs in very small amounts in the atmosphere.
Report Abuse. Nearly all helium on Earth is a result of radioactive decay. The decay product is primarily found in minerals of uranium and thorium. In what is called radioactive emission of alpha particles the atom of, say uranium, spits out particles in the form of two protons and two neutrons--a helium nucleus.Charles M Â· 8 years ago.he decay product is primarily found in minerals of uranium and thorium. In what is called radioactive emission of alpha particles the atom of, say uranium, spits out particles in the form of two protons and two neutrons--a helium nucleus. Charles M Â· 8 years ago.