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andrezito [222]
3 years ago
7

What is the best source region for an air mass? a. generally flat areas of uniform composition with light surface winds b. gener

ally flat area of uniform composition with strong surface winds c. mountains with deep valleys and strong surface winds d. hilly with deep valleys and light winds
Geography
1 answer:
Ludmilka [50]3 years ago
6 0

Answer: The correct answer is option A, the best source region for an air mass are generally flat areas of uniform composition with light surface winds.

Explanation:

Source Regions may be defined as parts of the Earth's surface where the air can remain in one position over a long period of time (stagnate) and slowly begin to gain properties of the underlying surface. It is also important to note that the main source regions include:

1) the high pressure belts which is located in the subtropics (which give rise to tropical air masses)

2) around the earth poles (which is the source for polar air masses).

However, the best source region are generally flat areas of orderly(uniform) composition with light(not too heavy) surface winds.

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Answer:

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Explanation:

The albedo temperature is given as

Te =\left [\dfrac{L(1-a)}{ (16\pi \sigma D^2}\right]^{1/4}

Here

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D = distance from Sun

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By substitution of the values, the black body temperature for Venus and Mars are as

Venus: 327 K

Mars: 225 K

Mars albedo temperature is closer to its black body temperature such that the Venus has more albedo.

Thus there is a chance that Mars would have had life in their history.

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