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"How Is Helium Produced?"
Production: Although Helium is one of the most common elements in the universe
it is a rare gas on earth. It exists in the atmosphere in such small quantities
(less than five parts per million) that recovering it from the air is
uneconomical. Helium is produced as a by-product of the refining of natural gas,
which is carried out on a commercial scale in the USA and Poland. In these areas
natural gas contains a relatively high concentration of Helium which has
accumulated as a result of radioactive decay of heavy elements within the
earth's crust. Helium is supplied to di ....
Word count: 1143 - Page count: 5
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