<span>Answer c Glacial melting is not an event caused by the human activities. All the other events like draining wetlands, agriculture, pesticide use are caused by human activities. Glacial melting occurs when the glaciers situated at high latitudes melt due to warming which leads to rise in sea level and eventually inundation of the low lying coastal areas</span>
The correct answer is (B) Photosynthesis and diffusion from the air
Dissolved oxygen enters the water from photosynthesis and through air. The The aeration of water can be caused by wind. From the air oxygen diffuse into the water and gets mixed in the it through circulation. The oxygen is also produced as a waste product of photosynthesis from blue-green algae, phytoplankton, etc which is added in water.
Hello, Sameedfarooqui6
You see jellyfish adapted to not having a brain but they still have a nervous system. This nervous system goes to there tentacles which helpes jellyfish detect tempatures, touch, food etc.
If that did help i would gladly accept brainliest thanks duded and have a great day!
