1.1.1 The name of the air pressure cell that dominates the interior of South Africa in winter is the Kalahari high.

Here are the answers for Section A, Question 1.1:

1.1.1 The name of the air pressure cell that dominates the interior of South Africa in winter is the Kalahari high.
Answer: Z

1.1.2 Air movement associated with high-pressure cells is divergence.
Answer: Z

1.1.3 The general direction of movement of a coastal low-pressure system is westerly.
Answer: Z

1.1.4 The South Indian high is known as a blocking high when it is in the path of the mid-latitude cyclone.
Answer: Y

1.1.5 The elongation of isobars extending outwards from a high-pressure cell is referred to as ridging.
Answer: Z

1.1.6 A moisture front is found between two air masses of different moisture contents.
Answer: Y

1.1.7 The conditions represented in the sketch (two high-pressure cells with a trough between them) will lead to line thunderstorms.
Answer: Y

1.1.8 Rainfall with 20 knots of wind is likely at Cape Town (CT), as indicated by the low-pressure system (L) and associated frontal activity typically bringing rain to the Western Cape.
Answer: Z