Question

3.8 describe the path a drop of water may take through the water cycle starting with it evaporating from a lake or ocean. 3.9 if a tree dies and slowly rots away, does this add carbon dioxide to or remove it from the air? 3.10 if you were able to see carbon dioxide as it interacted with the surface of the ocean, you would see the ocean absorb an enormous amount of carbon dioxide. only a portion of that carbon dioxide actually dissolves in the ocean, however. a large amount of the carbon dioxide goes into the ocean but is not dissolved. if it isn’t dissolved, what is it used for?

Explanation:

3.8: Water evaporates from a lake or ocean into water - vapor in the air. It then condenses to form clouds. Precipitation occurs as rain, snow, etc., which can fall back into the lake/ocean or on land. Run - off from land can return water to the lake or ocean.
3.9: When a tree dies and rots, the carbon stored in it is released back into the environment as carbon dioxide through decomposition, adding carbon dioxide to the air.
3.10: The non - dissolved carbon dioxide is used by marine plants in photosynthesis to produce organic matter and oxygen.

Answer:

3.8: Water evaporates into the air as water - vapor, condenses to form clouds, precipitates as rain or snow, and may return to the lake or ocean via run - off.
3.9: Adds carbon dioxide to the air.
3.10: Used by marine plants in photosynthesis.