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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.

organic substrates, oxygen-poor conditions, and moisture. The level of emissions depends upon soil conditions and production practices as well as climate. There are cultivation practices that could possibly be helpful in reducing methane emissions from rice cultivation. Without them, rice production adds between 7.4 Tg per year.

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