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.
The element helium is an inert or noble gas, and is found on the periodic table with the other inert gases in Group 18.They're the elements down the far right column of the table.he element helium is an inert or noble gas, and is found on the periodic table with the other inert gases in Group 18.