Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test (DAT) efficiently. Utilize flashcards and multiple-choice questions with helpful explanations. Ace your exam!

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Which of the following is not considered a greenhouse gas?

  1. CO2

  2. O3

  3. N2O

  4. SO2

The correct answer is: SO2

The correct answer is sulfur dioxide (SO2), as it is not classified as a greenhouse gas. Greenhouse gases are substances that trap heat in the atmosphere and contribute to the greenhouse effect, which warms the planet. Carbon dioxide (CO2), ozone (O3), and nitrous oxide (N2O) all play significant roles in this process. Sulfur dioxide primarily contributes to air pollution and can lead to the formation of acid rain, which can harm the environment, but it does not have the same heat-trapping properties as the other gases listed. The presence of CO2, O3, and N2O in the atmosphere contributes to global warming, making them significant greenhouse gases, whereas SO2 is more associated with pollution and health concerns rather than climate change.

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