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Multiple Choice Questions

Consider the following statements with reference to the frontal systems 1 A cold front forms wh...........

Geography and Environment World climates

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Consider the following statements with reference to the frontal systems

1. A cold front forms when stable cold air meets advancing warm air

2. A cold front is generally slower than warm front, as cold air mass is more dense and stable

compared to warm air mass.

3. A cold front has a steeper slope compared to warm front.

Which of the statements given above is/are correct?

1 and 2

Only 2

Only 3

1 and 3

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Explanation:

Statement 1 is wrong: A cold front forms when an advancing cold air mass meets warmer air, while a warm front forms where an advancing warm air mass meets colder air.

Statement 2 is wrong: Cold fronts normally move faster than warm fronts because the dense, cold air mass easily displaces the lighter warm air.

Statement 3 is correct- Because of friction with ground, the advance of lower portion of a cold air mass is slowed relative to upper portion, resulting in steepness of slope and a protruding “nose” as it moves forward.

Hence only 3^rd statement is correct.

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