Distances in space could be measured in common units of length, such as miles or kilometers. But measuring such large distances in these common units creates some pretty big numbers. It's easier to measure distances in two alternate units of distance- light years and astronomical units.
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The correct answer is C. There is no oxygen in space, so there can be no combustion.
Explanation:
Fire and flames are the result of a chemical process known as combustion. Moreover, for combustion to occur there are two essential elements. The first one is a fuel or a substance that releases energy and ignites, and the second one is an oxidant, which accepts electrons. This mix and reaction causes high temperatures and release of heat in the form of fire and flames.
This implies, that for fireballs or any other form of fire to exist there must be oxygen or any substance that replaces it. This does not occur in space because the levels of oxygen are extremely low, this means, at least oxygen is added fireballs are not possible in this context as there is no oxygen, and therefore no combustion (Option C).
Answer:
Neon
Explanation:
The most stable Atoms are from the elements on group 18 of the predictable.
