Respuesta :
water availability because the human body is made mostly of water
Abiotic factors are the non-living components that are found in nature. Water availability is most likely to affect humans directly. Thus, option D is accurate.
What are abiotic factors?
Abiotic factors are the physical and chemical components that are not living and and play an essential role in nature and are linked to the biotic factors.
Water is one of the abiotic factors that directly affect humans as they are made up of water and are required for their survival. Water is needed in the metabolic process.
Therefore, option D. water is the essential abiotic factor that directly affects humans.
Learn more about abiotic factors here:
https://brainly.com/question/4003712
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