Q. Consider the following pairs:
Local Winds
Region
1. Harmattan
Eastern slopes of the Rocky Mountain
2. Loo
India and Pakistan
3. Chinook
West Africa
4. Foehn
Northern slopes of the Alps mountains
Which of the pairs given above are correctly matched?
Q. Consider the following pairs:
| Local Winds | Region |
| 1. Harmattan | Eastern slopes of the Rocky Mountain |
| 2. Loo | India and Pakistan |
| 3. Chinook | West Africa |
| 4. Foehn | Northern slopes of the Alps mountains |
Which of the pairs given above are correctly matched?
The correct option is C 2 and 4 only
Explanation:
Pair 1 is incorrectly matched:
Harmattan
The warm and dry winds blowing from northeast and east to west in the eastern parts of the Sahara desert are called Harmattan. These winds become extremely dry because of their journey over the Sahara desert. While blowing over the desert, these winds pick up more sands, mainly red sands. Harmattan is known as ‘doctor’ in the Guinea coastal area of Western Africa.
Pair 2 is correctly matched:
Loo
Loo is a hot and dry wind, which blows very strongly over the northern plains of India and Pakistan in the months of May and June. Its direction is from west to east and they are usually experienced in the afternoons. Their temperature varies between 45°C to 50°C.
Pair 3 is incorrectly matched:
Chinook
These are warm and dry winds blowing on the eastern slopes (leeward side) of the Rocky Mountains. They are called Snow Eaters as they melt the underlying snow cover.
Pair 4 is correctly matched:
Foehn
A warm and dry wind like chinook is called ‘foehn’ along the northern slopes of the Alps mountains. These are more common during the months of spring and autumn in Switzerland. The weather becomes quite pleasant in the valleys due to the melting of snow because of an increase in temperature by around 40°F after the arrival of foehn. Therefore, the valleys of Switzerland are called ‘climatic oases' during the winter season. These winds help in the early sowing of wheat, ripening of grapes and checking autumn frost.
Explanation:
Pair 1 is incorrectly matched:
Harmattan
The warm and dry winds blowing from northeast and east to west in the eastern parts of the Sahara desert are called Harmattan. These winds become extremely dry because of their journey over the Sahara desert. While blowing over the desert, these winds pick up more sands, mainly red sands. Harmattan is known as ‘doctor’ in the Guinea coastal area of Western Africa.
Pair 2 is correctly matched:
Loo
Loo is a hot and dry wind, which blows very strongly over the northern plains of India and Pakistan in the months of May and June. Its direction is from west to east and they are usually experienced in the afternoons. Their temperature varies between 45°C to 50°C.
Pair 3 is incorrectly matched:
Chinook
These are warm and dry winds blowing on the eastern slopes (leeward side) of the Rocky Mountains. They are called Snow Eaters as they melt the underlying snow cover.
Pair 4 is correctly matched:
Foehn
A warm and dry wind like chinook is called ‘foehn’ along the northern slopes of the Alps mountains. These are more common during the months of spring and autumn in Switzerland. The weather becomes quite pleasant in the valleys due to the melting of snow because of an increase in temperature by around 40°F after the arrival of foehn. Therefore, the valleys of Switzerland are called ‘climatic oases' during the winter season. These winds help in the early sowing of wheat, ripening of grapes and checking autumn frost.
