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UPSC CSE Physical Geography — practice questions — page 17

Explore 1,011 free Physical Geography questions in UPSC CSE Geography. Open each question or exercise to read its content, reference answers and available explanation.

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Physical Geography questions and exercises with answers

Showing questions 481–510 of 1,011.

Water vapour keeps the earth neither too cold nor too hot, acting like a:Read the answer and worked solution →Dust and salt particles act as which kind of nuclei for cloud formation?Read the answer and worked solution →Dust particles are most concentrated in which regions?Read the answer and worked solution →Based on temperature, the atmosphere is divided into how many layers?Read the answer and worked solution →The average height of the troposphere is:Read the answer and worked solution →The troposphere is thickest at the equator, reaching about:Read the answer and worked solution →In the troposphere, temperature falls by 1 degree C for every:Read the answer and worked solution →The zone separating the troposphere from the stratosphere is the:Read the answer and worked solution →The air temperature at the tropopause over the equator is about:Read the answer and worked solution →The stratosphere extends up to a height of about:Read the answer and worked solution →Which atmospheric layer contains the ozone layer?Read the answer and worked solution →The mesosphere extends up to a height of about:Read the answer and worked solution →Radio waves transmitted from the earth are reflected back by the:Read the answer and worked solution →The ionosphere lies between which heights?Read the answer and worked solution →Catch the atmospheric layersRead the answer and worked solution →Pop the weather elementsRead the answer and worked solution →Run the layer heightsRead the answer and worked solution →Slice the atmosphere's contentsRead the answer and worked solution →Troposphere or stratosphereRead the answer and worked solution →Sort the atmosphere's partsRead the answer and worked solution →Type the numberRead the answer and worked solution →Atmosphere bingoRead the answer and worked solution →Incoming solar radiation received by the earth is termed:Read the answer and worked solution →On average the earth receives how many calories per sq cm per minute at the top of the atmosphere?Read the answer and worked solution →The earth is farthest from the sun, at 152 million km, on which date?Read the answer and worked solution →The earth's position nearest to the sun is called:Read the answer and worked solution →At perihelion, how far is the earth from the sun?Read the answer and worked solution →The red of the rising sun and the blue of the sky result from:Read the answer and worked solution →Insolation at the surface is about 320 W per sq m in the tropics and about how much at the poles?Read the answer and worked solution →Maximum insolation is received over which regions?Read the answer and worked solution →

Worked practice questions

Water vapour keeps the earth neither too cold nor too hot, acting like a:

  1. Filter
  2. Sponge
  3. Blanket
  4. Mirror
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Correct answer: C. Blanket

1. It absorbs insolation and preserves radiated heat. 2. It acts like a blanket. 3. It also affects air stability. _Source: syllabus Fundamentals of Physical Geography, Chapter 8, Composition and Structure of Atmosphere._

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Dust and salt particles act as which kind of nuclei for cloud formation?

  1. Radioactive
  2. Magnetic
  3. Volcanic
  4. Hygroscopic
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Correct answer: D. Hygroscopic

1. Water vapour condenses around them. 2. They are hygroscopic nuclei. 3. Clouds form as a result. _Source: syllabus Fundamentals of Physical Geography, Chapter 8, Composition and Structure of Atmosphere._

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Dust particles are most concentrated in which regions?

  1. Subtropical and temperate
  2. Equatorial and polar zones
  3. Polar ice regions only
  4. Equatorial forests only
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Correct answer: A. Subtropical and temperate

1. Dry winds lift more dust. 2. Subtropical and temperate regions have most dust. 3. Equatorial and polar regions have less. _Source: syllabus Fundamentals of Physical Geography, Chapter 8, Composition and Structure of Atmosphere._

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