Western coasts in tropical regions receive lesser rainfall in the eastern coasts of continents Which...........

Geography World climates

Western coasts in tropical regions receive lesser rainfall in the eastern coasts of continents. Which of these can possibly explain the phenomenon?

1. Western coasts are typically associated with Mountains that block flow of moisture laden winds.

2. Western coasts have year round lower temperature than eastern coasts at the same latitude.

Which of the above is/are correct?

1 only

2 only

Both 1 and 2

None

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Explanation:

Option A: Not every western coast is associated with Mountain, for e.g. Gujarat coastal belt.
Option B: Such generalization is wrong

The actual reason is the direction of flow of trade winds. The trade winds are moist, as they have passed over warm seas.
Since they are easterlies, they cause greater precipitation on the eastern coasts and run dry on the western coasts and interiors.