Distrito Federal had a total population of 8,605,239 in 2000; of the total, 4,110,485 (48%) were men and 4,494,754 (52%) were women. The population density was 5,799 people per square kilometer (15,019 people per square mile). The Distrito Federal is the most densely populated region of the country.
Confidence votes 5.0K. 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.