Consider the following statements regarding 'fronts' : 1. The moveme

Consider the following statements regarding ‘fronts’ :

1. The movement of a front causes a slow change in weather in the area over which it moves.
2. Cold fronts are associated with thunderstorms.
3. Warm front is the boundary between an advancing mass of warm air where it is overriding and rising above a mass of colder air.

Which of the statements given above is/are correct ?

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1 only

1 and 2 only

2 and 3 only

1, 2 and 3

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC NDA-1 – 2024

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Statement 2 is correct. Cold fronts involve the rapid lifting of warm air by an advancing cold air mass, leading to steep pressure gradients and instability, which frequently results in the formation of cumulonimbus clouds and thunderstorms, heavy rain, and gusty winds. Statement 3 is correct. A warm front is defined as the boundary where an advancing mass of warm air overrides and rises above a colder air mass. The warm air, being less dense, slides up over the wedge of colder air. Statement 1 is incorrect. While warm fronts typically cause gradual and prolonged weather changes (like steady rain), cold fronts often bring about rapid and significant weather changes (sudden temperature drop, intense precipitation, thunderstorms). Thus, saying “slow change” for *all* fronts is incorrect.

Atmospheric fronts are the boundaries between air masses with different temperature, humidity, and density characteristics. Their passage is associated with significant weather changes. Cold fronts are generally steeper and move faster than warm fronts.

Other types of fronts include stationary fronts (where air masses meet but neither is strong enough to replace the other) and occluded fronts (formed when a cold front overtakes a warm front). Each type of front is associated with characteristic cloud formations, precipitation patterns, and temperature/pressure changes.

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