Question

Which two harmful gases are released in great quantities in landfills?    A. Methane and oxygen    B. Methane and carbon dioxide    C. Nitrogen and oxygen​

Answer 1

Answer:

B. Methane and carbon dioxide

Answer 2

★ METHANE AND CARBON DIOXIDE

THEY BOTH ARE HARMFUL GASES IF THEY ARE PRODUCED AT SAME TIME.

METHANE = Methane is gas that is found in small quantities in Earth's atmosphere. Methane is the simplest hydrocarbon, consisting of one carbon atom and four hydrogen atoms. Methane is a powerful greenhouse gas. Methane is flammable, and is used as a fuel worldwide. It is a principal component of natural gas.

$formula \: of \: methane \: = \: ch_{4}$

CARBON DIOXIDE = Carbon dioxide is an important heat-trapping (greenhouse) gas, which is released through human activities such as deforestation and burning fossil fuels, as well as natural processes such as respiration and volcanic eruptions.

$formula \: of \: carbon \: dioxide \: = \\ \\ co_{2}$

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