What would likely happen if you were exposed...

Question 1 / 270705eccef9ebacbc34ba4d465e8

Question 1 of 270705eccef9ebacbc34ba4d465e8

What would likely happen if you were exposed to a 100% methane atmosphere for more than 15 minutes?

Question 1 of 27070

What would likely happen if you were exposed to a 100% methane atmosphere for more than 15 minutes?

🔍 Key Concepts

• Methane properties: Is methane primarily toxic or an asphyxiant (displaces oxygen)? • Oxygen concentration needed to support human life and normal breathing • Difference between burns/rashes/toxicity versus lack of oxygen effects

💭 Think About

• If the air around you were completely replaced by methane, what would happen to the amount of oxygen you could breathe? • Do people working around natural gas leaks worry more about poisoning from methane itself, or from something else? • Which of the listed effects can occur without a source of ignition or extreme cold?

✅ Before You Answer

• Remember that normal air has about 21% oxygen; what happens if that drops close to 0%? • Check whether methane is classified as toxic or mainly as a simple asphyxiant and fire/explosion hazard • Ask yourself which option describes the primary immediate health risk in an oxygen-free but otherwise non‑reactive gas atmosphere

Question 1 of 27070

What would likely happen if you were exposed to a 100% methane atmosphere for more than 15 minutes?

suffocate

break out in a cyrogenic rash

be severely burned

become quite ill due to the toxic nature of the gas