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.
Ad. Although helium is the second most abundant element in the universe, it can be challenging to find on Earth. It is frequently extracted from natural gas, which can contain the element in concentrations ranging from 2 to 7%.op 10 amazing movie makeup transformations. Helium is a chemical element that occurs in great abundance throughout the universe, although it is not as widely distributed on Earth. It typically takes the form of a gas, and it heads up the list of noble gases in the periodic table of elements.