Answer:
What are the three species?
It would be volcanic eruptions because all of the other ones don't make sense.
<span>The correct answer for the first is C. cholesterol. That's because these are specific examples of cholesterol while there are lipids that are not cholesterol and work differently so not all lipids are fats and cholesterol. The answer for the second is D. Use amino acid powders from a health food store. That's because these are used in synthesizing protein so your body would have more protein if you took them.</span>
<span>Combustion reaction is a chemical reaction where compounds and oxidants produce heat and new product during their reaction. The reaction between a HC (hydrocarbon) and O (oxygen) to produce CO2 (carbon dioxide) and H2O (water) is a standard form of a combustion reaction. Therefore,the correct answer would be A.
It is the combustion of gas (Methane, CH4) when it encounters oxygen (2O2). Methane will burn forming C02 gas and H20 gas.</span>