Which of the following are true of rising and descending parcels of air?
A. A rising air parcel cools because of increased pressure.
B. A parcel that is warmer than the air around it is unstable
C. A descending air parcel warms because the environment around it is warmer.
D. A descending air parcel warms because of increased pressure.
E. The process of temperature decrease in a rising parcel of air due to expansion is synonymous with the change in temperature of gases from an aerosol can, which upon release gets colder.




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