This is a coral reef ecosystem. many biotic and abiotic factors affect the health of this ecosystem. which set correctly pairs a biotic factor and an abiotic factor?

First, we have to know the definition of the following vocabulary terms:

Abiotic = non-living

Biotic = living

Then, it's just a matter of seeing which answer choice has both a living organism and a non-living part of the ecosystem.

Correct

Algae and sunlight

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.