The modern atomic theory states that all matter is made out of atoms and that they cannot be destroyed or created out of nothing. They can't be changed, but they can be combined with other atoms and create new compounds.
One example of a long term effect such as loss of habitat could be a possible decrease in population of a species and others that rely on it.
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The answer is <span>Ogallala Aquiferi
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The natural gas is composed of methane, butane, propane and a small amount of iso-Butane.
These all are organic compound (alkanes) and burn in presence of the oxygen to give carbon dioxide. The burning of the alkanes is type of exothermic reaction, which means they liberate heat energy on reaction. The enrgy is released due to the braking of the bond and the formation of the new bonds.
Hence, it can be concluded the chemical taking place at the time of burning of these gases gives off the energy.