1.What factors define aquatic ecosystems?

In other words, physical or chemical parts of the environment that affect the organisms that are in that environment.

Explanation:

For aquatic ecosystems, these factors include light levels, water flow rate, temperature, dissolved oxygen, acidity (pH), salinity and depth. Light level is an important factor in aquatic ecosystems. hope this helps you :) god loves you :)

the electromagnetic energy from the sun arrives in the form of visible and invisible light.