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Which of the following has caused the greatest increase in global warming ? * A. Burning of fossil fuels B. Increases in atmospheric nitrogen C. People breathing out D. Turning lights off

Sagot :

Answer: B

Explanation: Are world is pretty much powered by fossil fuels. To change this many are switching to solar, but to produce solar panels we are still burning fossil fuels. So in order to end are high output of carbon we should switch to hydrogen powered machinery