Final answer:
Two properties of ocean water affected by depth are dissolved oxygen and dissolved nutrients. Water near the surface has more dissolved oxygen than deeper water, while water near the bottom may contain more nutrients due to decomposition.
Step-by-step explanation:
Two properties of ocean water affected by depth are dissolved oxygen and dissolved nutrients. Water near the surface of lakes and the ocean usually has more dissolved oxygen than deeper water because surface water absorbs oxygen from the air. Water near the bottom of lakes and the ocean may contain more nutrients than water closer to the surface because decomposers near the bottom break down dead organisms and release nutrients back into the water.