B is correct. Krypton is a noble gas which has a full outer shell of 8 electrons and is generally unreactive because of it.
Answer:
respiration is a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
I think the answer is B. fatty acids
I can confirm after I finish the test
the answer would be more be cause its the point at witch the moon blocks the sun, so if the moon revolved faster it would cover the sun more often.