Question

Study the given maps A and B in Fig. and answer the following questions:

1. Pressure and wind conditions of which months are represented by maps ‘A’ and ‘B’ respectively.
2. What difference do you find in pressure and winds in these two maps?
3. State the cause of these differences.

Answer 1

1. Pressure and Wind Conditions:
   • Map A: Represents January (Winter Season).
   • Map B: Represents July (Summer/Monsoon Season).

2. Feature	Map A (January)	Map B (July)
   Pressure	High pressure over land, low over the sea.	Low pressure over land, high over the sea.
   Wind	Winds blow from land to sea (Northeast Monsoon).	Winds blow from sea to land (Southwest Monsoon).

3. Cause of Differences:
   • In January (Winter): The landmass is cold and has high pressure, while the sea is warmer with low pressure. So winds blow from land to sea.
   • In July (Monsoon): The landmass heats up and has low pressure, while the sea is cooler with high pressure. So winds blow from sea to land, bringing monsoon rains.