Fog and clouds

. State two examples discussed in class where we identify the evaporation process in the atmosphere.
(2 lines)

2. Explain why fog and clouds can form even when the relative humidity (RH)is less than 100"\%".
   (5 lines)
3. Name two characteristics of the wind pattern around a surface Low pressure centre.
   (3 lines)
4. Explain briefly what is a squall line.
   (2 lines)
5. Explain why the East coast of North America provides the ideal conditions for the development of the Nor’easter storms.
   (7 lines)

UNIT B

1. Observe the circulations below (Fig.1). State what hemisphere the systems are in and what balance the flow is subject to in each system.