PLEASE ANSWER! Write a balanced chemical equation for the combustion of cetane, C16H34, a hydrocarbon present in diesel fuel: (a) in the presence of excess oxygen. Do not include physical states in your answer.
(b) in a somewhat limited supply of oxygen. Do not include physical states in your answer.

(c) in a severely limited supply of oxygen. Do not include physical states in your answer.

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.