Methane is a major part of natural gas. This equation is showing the chemical reaction when methane is burned. Explain 2 reasons that this is a combustion reaction.

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what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

i think that d. wind is the answer.   i missed the question when i answered a. currents.