Waves hitting the shore do not produce oxygen; instead, they can increase the concentration of dissolved oxygen in the water by mixing atmospheric oxygen into it. This mixing occurs because moving water generally holds a higher percentage of dissolved oxygen compared to stagnant water. The primary source of oxygen in the ocean is from marine plant life through photosynthesis, not from wave action. If waves were absent, the overall impact on underwater life would likely be minimal, as the majority of oceanic oxygen is generated biologically. Additionally, as water warms near the shore, it can release oxygen due to decreased solubility, further influencing oxygen levels.