All the following statements are true. Which two represent the two facts that lead us to expect Earth to be warming up as a result of human activity? Be sure to choose two of the statements below.

All the following statements are true. Which two represent the two facts that lead us to expect Earth to be warming up as a result of human activity? Be sure to choose two of the statements below.

The answer is :

-Human activity is increasing the concentration of carbon dioxide and other greenhouse gases in the atmosphere.

-Greenhouse gases make Earth warmer than it would be otherwise.

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