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CRITICAL THINKING ACTIVITY: THE METHANE CYCLE

Student Sheet 1 CRITICAL THINKING ACTIVITY: THE METHANE CYCLE WHAT IS METHANE ? METHANE is a chemical compound with the molecular formula CH4. It is the main component in natural gas. METHANE is considered the simplest of alkanes, compounds that consist only of hydrogen (H) and carbon (C) elements. METHANE is an odorless, colorless, tasteless gas that is lighter than air. When METHANE burns in the air it has a blue flame. In sufficient amounts of oxygen, METHANE burns to give off carbon dioxide (CO2) and water (H2O). When it undergoes combustion it produces a great amount of heat, which makes it very useful as a fuel source.

natural sources or about 2-20 Tg per year. Microbes in the guts of termites produce methane as part of their normal digestive process, and the amount generated varies among different species. The emissions contributed by termites depend largely on the population of these insects, which varies significantly in different regions.

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gml.noaa.gov

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