Question

choose the correct answer. which of the following gases has a greenhouse warming potential of less than one and lasts nine days in the atmosphere? nitrous oxide carbon dioxide water vapor

Explanation:

To solve this, we analyze each gas:

• Nitrous oxide (N₂O) has a high greenhouse warming potential (GWP) >1 and a long atmospheric lifetime (over 100 years), so it's not correct.
• Carbon dioxide (CO₂) has a GWP of 1 (by definition for comparison) but has a very long atmospheric lifetime (centuries to millennia), so it's not correct.
• Water vapor (H₂O vapor) has a GWP <1 and an average atmospheric residence time of about 9 days, matching the criteria.

Answer:

water vapor