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Test: Climate - 2 - UPSC MCQ


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15 Questions MCQ Test Geography for UPSC CSE - Test: Climate - 2

Test: Climate - 2 for UPSC 2024 is part of Geography for UPSC CSE preparation. The Test: Climate - 2 questions and answers have been prepared according to the UPSC exam syllabus.The Test: Climate - 2 MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Climate - 2 below.
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Test: Climate - 2 - Question 1

Which layer of the atmosphere has the greatest height at the equator due to upward transportation of heat by strong convection currents?

Detailed Solution for Test: Climate - 2 - Question 1

The troposphere is the lowest layer of Earth's atmosphere, extending up to 10 km at the poles and up to 18 km at the equator. The height of the troposphere is greatest at the equator due to the strong convection currents caused by the upward transportation of heat from the Earth's surface.

Test: Climate - 2 - Question 2

In which layer of the atmosphere is the ozone layer primarily located?

Detailed Solution for Test: Climate - 2 - Question 2

The ozone layer is primarily located in the lower portion of the stratosphere, between 15 and 35 km above the Earth's surface. The ozone layer plays a crucial role in protecting life on Earth by absorbing harmful ultraviolet (UV) radiation from the sun.

Test: Climate - 2 - Question 3

Which of the following is NOT a cause of ozone layer depletion?

Detailed Solution for Test: Climate - 2 - Question 3

The primary causes of ozone layer depletion are human-made substances, such as chlorofluorocarbons (CFCs) and nitrous oxides. While volcanic eruptions can have significant short-term impacts on the atmosphere, they do not contribute to long-term ozone depletion.

Test: Climate - 2 - Question 4

Which layer of the atmosphere is characterized by the presence of electrically charged particles (ions) and is the zone of Earth's satellites?

Detailed Solution for Test: Climate - 2 - Question 4

The ionosphere, also known as the thermosphere, extends up to 400 km above the Earth's surface and contains electrically charged particles (ions). The ionosphere is the region where Earth's satellites are located, and is also responsible for reflecting radio waves, enabling long-distance radio transmissions.

Test: Climate - 2 - Question 5

Which of the following atmospheric phenomena is caused by the interaction between Earth's magnetic field and solar winds?

Detailed Solution for Test: Climate - 2 - Question 5

Auroras are caused by the interaction between Earth's magnetic field and solar winds. When the magnetic field traps solar winds in the atmosphere, collisions between solar wind particles and atmospheric charged molecules (ions) result in the formation of auroras. There are two types of auroras: Aurora Borealis (Northern Lights) in the northern hemisphere and Aurora Australis (Southern Lights) in the southern hemisphere.

Test: Climate - 2 - Question 6

Which of the following factors does NOT influence temperature?

Detailed Solution for Test: Climate - 2 - Question 6

Temperature is influenced by various factors such as latitude, altitude, continentality, ocean currents and winds, slope, shelter and aspect, natural vegetation, and soil. However, population density does not directly influence temperature.

Test: Climate - 2 - Question 7

How does altitude affect temperature?

Detailed Solution for Test: Climate - 2 - Question 7

Temperature decreases with increasing altitude because the atmosphere is mainly heated by conduction from the Earth's surface. Thus, places near the Earth's surface are warmer than those higher up.

Test: Climate - 2 - Question 8

What is the primary reason for temperature reduction from the equator to the poles?

Detailed Solution for Test: Climate - 2 - Question 8

Due to the Earth's inclination, direct and oblique sunrays fall differently on different latitudes, causing temperature to reduce from the equator to the poles.

Test: Climate - 2 - Question 9

How do ocean currents and winds influence temperature?

Detailed Solution for Test: Climate - 2 - Question 9

Ocean currents and winds affect temperature by transporting their heat or coldness into adjacent regions. For example, the westerlies that come to Britain and Norway tend to be cool winds in summer and warm winds in winter.

Test: Climate - 2 - Question 10

Which of the following factors causes a difference in temperature between forested regions and open ground?

Detailed Solution for Test: Climate - 2 - Question 10

There is a definite difference in temperature between forested regions and open ground due to natural vegetation. Thick Amazon forests, for example, cut off much of the incoming insolation, keeping the land surface of the jungle cool and a few degrees lower than open spaces in corresponding latitudes.

Test: Climate - 2 - Question 11

Which of the following is the most common form of precipitation?

Detailed Solution for Test: Climate - 2 - Question 11

Rainfall is the most common form of precipitation, occurring as the result of the condensation of atmospheric water vapor and its subsequent falling to the Earth's surface in the form of water droplets.

Test: Climate - 2 - Question 12

Which type of rainfall is common in Equatorial and Tropical regions in summers?

Detailed Solution for Test: Climate - 2 - Question 12

Convectional rainfall is common in Equatorial and Tropical regions in summers. It occurs when air on being heated becomes light and rises up as convectional currents. As it rises, it loses heat, and consequently, condensation takes place with the formation of cumulus clouds.

Test: Climate - 2 - Question 13

In which type of rainfall does the rain fall steadily for a few hours to a few days?

Detailed Solution for Test: Climate - 2 - Question 13

Cyclonic or frontal rainfall occurs along the fronts of cyclones, such as cold fronts and warm fronts. At the warm front, the warm lighter wind rises gently over the heavier cold air, which being heavy stays close to the ground. As the warm air rises, it cools, and the moisture present in it condenses to form altostratus clouds, resulting in steady rainfall for a few hours to a few days.

Test: Climate - 2 - Question 14

In which type of rainfall are rain shadow areas formed?

Detailed Solution for Test: Climate - 2 - Question 14

Rain shadow areas are formed in orographic or relief rainfall. When a warm and moist air current is obstructed by a mountain range, it is forced to ascend along its slopes. As the air ascends, it gets cooled, and when its temperature falls below the dew point, it causes rainfall on the windward slope of the mountain range. However, when these winds cross the mountain range and descend along its leeward side, they get warm and dry, causing only little rain (rain shadow areas).

Test: Climate - 2 - Question 15

What is the main difference between snowfall and sleet?

Detailed Solution for Test: Climate - 2 - Question 15

Snowfall occurs when condensation takes place below the freezing point, and water vapour directly converts into a solid state in the form of fine snowflakes. Sleet, on the other hand, is formed when frozen raindrops or refrozen melted snow water fall from the sky. Sleet occurs when a layer of temperature above the freezing point overlies a sub freezing layer near the ground, resulting in precipitation in the form of sleet.

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