Final answer:
The 4 types of air masses that affect the continental US are Dsb, Dsa, Cfc, and Cfb. These air masses have unique characteristics and influence the climate in different regions of the US.
Step-by-step explanation:
The 4 types of air masses that affect the continental US include:
- Dsb (Warm-summer Mediterranean continental)
- Dsa (Hot-summer Mediterranean continental)
- Cfc (Subpolar oceanic)
- Cfb (Oceanic)
These different air masses have distinct temperature and moisture characteristics, and their movement across the continent contributes to the diverse climate regions in the US.