Consider the following statements about air masses 1 Air masses primarily derive their characteristi...........

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Consider the following statements about air masses:

1.Air masses primarily derive their characteristics based on whether their source area is an ocean or a land.

2.One of the conditions for origin of air masses is Insulation should be unevenly distributed.

3.Light convergent winds within the source region are crucial for the formation of air masses as they allow for prolonged interaction with the source.

How many of the above statements are correct?

Only one

Only two

All three

None

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Explanation:

Statement 1 is correct. Air masses obtain their characteristics from the source region they form over. If the source region is an ocean, the air mass will be moist, and if the source region is land (e.g., a continent or desert), the air mass can vary in temperature based on the specific nature of the land but will generally be drier. The temperature and humidity characteristics of the underlying surface of the source region get imparted to the overlying air.

Statement 2 is incorrect. For the formation of air masses, insulation (incoming solar radiation) should be evenly distributed. An even distribution of solar radiation over a large region would lead to uniform temperature and pressure conditions, which are favorable for the formation of an air mass. Uneven distribution would create variations in temperature and pressure, making it difficult for a homogenous air mass to form.

Statement 3 is incorrect. The formation of air masses requires light divergent winds within the source region, not convergent winds. Divergent winds ensure that the air remains over its source region long enough to acquire the properties of the source region. Convergent winds, on the other hand, would lead to the accumulation of air, which might prevent the uniform acquisition of properties and could lead to rising motions, further disrupting the formation of a uniform air mass.