Question

question 6
ch 6 water and atmospheric moisture: atmospheric stability
what occurs at (or just above) the lifting condensation level?
the air parcel reaches the dew point temperature
the evaporation process takes over
air begins to descend
cloud formation

Explanation:

When an air parcel rises, it cools. At the Lifting Condensation Level (LCL), the air parcel has cooled to its dew - point temperature. At this point, the relative humidity reaches 100%, and the excess water vapor in the air parcel condenses around cloud condensation nuclei. This condensation process leads to cloud formation.

• The air parcel reaches the dew - point temperature at the LCL, but this is a condition for cloud formation, not the final outcome described in the question.
• Evaporation does not take over at the LCL. In fact, the opposite (condensation) occurs.
• Air does not begin to descend at the LCL. Ascending air reaches the LCL.

Answer:

Cloud formation.