What is an abiotic factor that affects a freshwater ecosystem

• Oxygen levels in water

• Water Temperature

• Space

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false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

i think that d. wind is the answer.   i missed the question when i answered a. currents.