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Methane is one of the “greenhouse gases”. ________ is (are) a primary source of release of methane into the atmosphere. A) The use of aerosol sprays B) Grazing animals C) Automobiles D) The burning of coal at power plants E) The breakdown of ozone

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Methane is one of the “greenhouse gases”. ________ is (are) a primary source of release of methane into the atmosphere.
A) The use of aerosol sprays
B) Grazing animals
C) Automobiles
D) The burning of coal at power plants
E) The breakdown of ozone

 
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