Hello!
I believe the best answer to your question would be Option C) excess carbon dioxide.
Hope this helps, and have a lovely rest of your day :)
Earthquake should be the answer. When tectonic plates are shifted it causes an earthquake.
Well the excretory system produces waste.
Differences in the density of water can also cause currents to form and move. Density is affected by temperature and salinity. Cold water or water with dissolved salts (higher salinity) is denser than warm water or water without dissolved salts (low or no salinity).
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Answer:
Abiotic
Explanation: Water is not a living thing, therefore water is an abiotic factor.