Which of the following was most likely not present in creating the fatty acids of early earth's waters of the past?

The answer is Phosphorus.

Explanation:

Phosphorus isn't used in creating the fatty acids of early Earth's waters of the past because it is a poisonous, combustible nonmetal chemical (atomic number 15) and one of it's main uses is in the production of fertilizer.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !