What is the typical percentage range of water vapor present in the atmosphere?

The correct choice highlights that the typical percentage of water vapor in the atmosphere ranges from 0 to 5% by volume. This variability is largely influenced by factors such as temperature and location. In warmer areas, especially tropics, the concentration of water vapor can approach 5%, while colder regions tend to have much lower concentrations, even close to 0%.

The concept of water vapor in the atmosphere is essential because it plays a significant role in weather processes and climate. It acts as a greenhouse gas, contributes to cloud formation, and influences precipitation patterns. Understanding this range helps in meteorological studies and predicting weather patterns since high humidity levels can significantly alter weather conditions.

In contrast, the other options suggest ranges that exceed what is typically observed. For instance, the 1-2% by volume option underestimates the potential maximum water vapor in humid conditions. Similarly, the 5-10% and 10-15% options are not representative of the atmosphere's typical state, especially since values are generally capped around the 5% mark even in the most humid conditions. Thus, the chosen answer aptly reflects the realistic and observed percentage of water vapor present in the atmosphere.