Climatology and Atmospheric Circulation MCQs

Consider the following statements: Statement I: In January, in the Northern Hemisphere, the isotherms bend equatorward while crossing the landmasses, and poleward while crossing the oceans. Statement II: In January, the air over the oceans is warmer than that over the landmasses in the Northern Hemisphere. Which one of the following is correct in respect of the above statements?

• ABoth Statement I and Statement II are correct and Statement II explains Statement ICorrect
• BBoth Statement I and Statement II are correct but Statement II does not explain Statement I
• CStatement I is correct but Statement II is not correct
• DStatement I is not correct but Statement II is correct

Consider the following statements: Statement I: The amount of dust particles in the atmosphere is more in subtropical and temperate areas than in equatorial and polar regions. Statement II: Subtropical and temperate areas have less dry winds. Which one of the following is correct in respect of the above statements?

• ABoth Statement I and Statement II are correct and Statement II explains Statement I
• BBoth Statement I and Statement II are correct but Statement II does not explain Statement I
• CStatement I is correct but Statement II is not correctCorrect
• DStatement I is not correct but Statement II is correct

Consider the following statements: 1. Without the atmosphere, temperature would be well below freezing point everywhere on the Earth's surface. 2. Heat absorbed and trapped by the atmosphere maintains our planet's average temperature. 3. Atmosphere's gases, like carbon dioxide, are particularly good at absorbing and trapping radiation. Which of the statements given above are correct?

• A1 and 3 only
• B1 and 2 only
• C1, 2 and 3Correct
• D2 and 3 only

With reference to 'water vapour', which of the following statements is/are correct? 1. It is a gas, the amount of which decreases with altitude. 2. Its percentage is maximum at the poles. Select the answer using the code given below.

• A1 onlyCorrect
• B2 only
• CBoth 1 and 2
• DNeither 1 nor 2

Consider the following statements: Statement I: Thickness of the troposphere at the equator is much greater as compared to poles. Statement II: At the equator, heat is transported to great heights by strong convectional currents. Which one of the following is correct in respect of the above statements?

• ABoth Statement I and Statement II are correct and Statement II explains Statement ICorrect
• BBoth Statement I and Statement II are correct, but Statement II does not explain Statement I
• CStatement I is correct, but Statement II is incorrect
• DStatement I is incorrect, but Statement II is correct

Consider the following description: 1. Annual and daily range of temperatures is low. 2. Precipitation occurs throughout the year. 3. Precipitation varies between 50 cm - 250 cm. What is this type of climate?

• AEquatorial climate
• BChina type climate
• CHumid subtropical climate
• DMarine West coast climateCorrect

Consider the following statements: Statement I: The atmosphere is heated more by incoming solar radiation than by terrestrial radiation. Statement II: Carbon dioxide and other greenhouse gases in the atmosphere are good absorbers of long wave radiation. Which one of the following is correct in respect of the above statements?

• ABoth Statement I and Statement II are correct and Statement II explains Statement I
• BBoth Statement I and Statement II are correct, but Statement II does not explain Statement I
• CStatement I is correct, but Statement II is incorrect
• DStatement I is incorrect, but Statement II is correctCorrect

With reference to 'Coriolis force', which of the following statements are correct? 1. It increases with increase in wind velocity. 2. It is maximum at the poles and is absent at the equator. Select the answer using the code given below.

• A1 only
• B2 only
• CBoth 1 and 2Correct
• DNeither 1 nor 2

Which of the following is/are correct inference/inferences from isothermal maps in the month of January? 1. The isotherms deviate to the north over the ocean and to the south over the continent. 2. The presence of cold ocean currents, Gulf Stream and North Atlantic Drift make the North Atlantic Ocean colder and the isotherms bend towards the north. Select the answer using the code given below.

• A1 onlyCorrect
• B2 only
• CBoth 1 and 2
• DNeither 1 nor 2

With reference to the Earth's atmosphere, which one of the following statements is correct?

• AThe total amount of insolation received at the equator is roughly about 10 times of that received at the poles.
• BInfrared rays constitute roughly two-thirds of insolation.
• CInfrared waves are largely absorbed by water vapour that is concentrated in the lower atmosphere.Correct
• DInfrared waves are a part of visible spectrum of electromagnetic waves of solar radiation.

Consider the following statements: 1. High clouds primarily reflect solar radiation and cool the surface of the Earth. 2. Low clouds have a high absorption of infrared radiation emanating from the Earth's surface and thus cause a warming effect. Which of the statements given above is/are correct?

• A1 only
• B2 only
• CBoth 1 and 2
• DNeither 1 nor 2Correct

'Leaf litter decomposes faster than in any other biome and as a result the soil surface is often almost bare. Apart from trees, the vegetation is largely composed of plant forms that reach up into the canopy vicariously, by climbing the trees or growing as epiphytes, rooted on the upper branches of trees'. This is the most likely description of:

• AConiferous forest
• BDry deciduous forest
• CMangrove forest
• DTropical rainforestCorrect