Answer:
Biotic factors are the living components of an ecosystem. They are sorted into three groups: producers or autotroph's, consumers or heterotrophs, and decomposers or detritivores.
Explanation:
CO because it is the chemical symbol for the element cobalt whereas the rest are compound. H20 is water, CO2 is carbon dioxide and N2 is dinitrogen.
A hypothesis is a prediction of what you believe to be true.
Answer:
<h2>It's between Jupiter and Mars.</h2>