Final answer:
The correct option is 4.
The statement that a cold air mass is sandwiched between two warm air masses is NOT true for a mature mid-latitude cyclone; in fact, it's a warm air mass that's typically between two cold air masses.
Step-by-step explanation:
The question pertains to the characteristics of a mature mid-latitude cyclone. In a mature mid-latitude cyclone, it is indeed true that there is a warm front and a cold front. It is also true that the movement around the cyclone, influenced by the Coriolis force, is in a counterclockwise direction in the Northern Hemisphere due to the deflection of winds to the right. However, a cold air mass is not sandwiched between two warm air masses in these systems; instead, a warm air mass is typically sandwiched between two cold air masses. Therefore, the statement that "A cold air mass is sandwiched in between two warm air masses" is NOT true about a mature mid-latitude cyclone.
The complete question is given below:
Which of the following is NOT true about a mature mid-latitude cyclone?
1. It includes a warm front
2. It includes a cold front
3. All fronts are moving in a counter-clockwise direction
4. A cold air mass is sandwiched in between two warm air masses
5. All of the above are true
6. None of the above are true