In 1–2 sentences, describe two ways carbon dioxide in the water affects habitats and ocean animals.(2 points)

Carbon dioxide in the water can lead to ocean acidification, which can harm marine organisms with shells or skeletons by limiting their ability to build and maintain their calcareous structures. Additionally, increased carbon dioxide levels can decrease oxygen levels in the water, leading to hypoxia, which can stress and even kill marine animals that rely on adequate oxygen concentrations for survival.

In 3-5 sentences, describe how pond ecosystems are impacted by an increasing level of carbon dioxide in the atmosphere. (4 points)