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How do scuba divers prevent the formation of bends and the toxic effects of high concentrations of nitrogen in the blood?

Options

  1. ABy using specialized suits
  2. BBy reducing the pressure gradually
  3. CBy consuming oxygen-rich beverages
  4. DBy breathing air diluted with helium

Correct answer

D. By breathing air diluted with helium

Step-by-step solution

The paragraph explains that to avoid the formation of bends and the toxic effects of high concentrations of nitrogen in the blood, scuba divers use tanks filled with air diluted with helium.

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