UGC Geography June 2014 Paper 3 Solved with Explanations: Part 2 of 7

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In this section we will provide the detailed answers and explanations for the UGC Geography Paper 3 for June 2014 - Part 2 of 7. For detailed explanations visit the Examrace channel at Youtube. Examrace under UGC Flexiprep program also provides online classes, postal courses and ebooks. The postal courses are available at the following link.

11. Match the following List I with List II and select the correct answer

List 1

a. Temperature falls with height

b. Reflects radio waves back to earth

c. Contain most of the ozone.

d. Fall in temperature stops

List 2

i. Ionosphere

ii. Stratosphere

iii. Tropopause

iv. Troposphere

Stratosphere contains most of the ozone. The temperature of the troposphere generally decreases as altitude increases. In tropopause, fall in temperature stops. Ionosphere reflects radio waves back to earth.

12. If the elevation of the sun declines, the albedo will -

(A) Decline

(B) Increase

(C) Remain the same

(D) No change

Answer: B

Albedo is defined as the reflective quality of a surface. It is expressed as a percentage of reflected insolation to incoming insolation and zero percent is total absorption while 100 % is total reflection. The angle of the sun also impacts albedo value and lower sun angles create greater reflection because the energy coming from a low sun angle is not as strong as that arriving from a high sun angle. Additionally, smooth surfaces have a higher albedo while rough surfaces reduce it.

13 Seasonal contrast in pressure between land and sea gives rise to:

a) Monsoons

b) Westerly winds

C) Land and Sea breezes

(D) Trade winds

Answer: C

Seasonal contrast in pressure between land and sea gives rise to land and sea breezes.

14. V. Bjerknes Model is related with:

A) Origin of anticyclones

b) Origin of mid-latitude cyclones

c) Origin of tropical cyclones

d) Origin of Monsoons

Answer: B

Bjerknes was part of a group of meteorologists led by his father, Vilhelm Bjerknes, at the University of Leipzig. Together they developed the model that explains the generation, intensification and ultimate decay (the life cycle) of mid-latitude cyclones, introducing the idea of fronts, that is, sharply defined boundaries between air masses. This concept is known as the Norwegian cyclone model.

15. Which of the following is correct?

a) Cold front is marked with triangular spikes

b) Warm front is marked by semicircles

c) A fast advancing warm front can cause violent lifting

d) Tornadoes develop along squall line

Answer: A

On a weather map a cold front is identified by a line marked with triangular spikes pointing in the direction of frontal movement along an advancing continental polar air mass.

16. Some heat is received by the atmosphere even after Sunset from:

(A) Invisible Solar radiation

(B) Latent heat

(C) Radioactive processes

(D) Terrestrial radiation

Answer: D

Terrestrial radiation is the energy radiated from earth towards atmosphere and space. After sunset, insolation ceases but earth continues to get heated by terrestrial radiation.

17. Given below are two statements one labelled as Assertion (A) and the other labelled as Reason (R) . Select your answer from the codes given below:

Assertion (A) : The growth of grass and other vegetative cover is limited to Selvas.

Reason (R) : The separate crowns of trees coalesce and form a thick canopy above the forest floor. Codes:

(A) Both (A) and (R) are true and (R) is correct explanation of (A) .

(B, Both (A) and (R) are true, but (R) is not correct explanation of (A) .

(C) (A) is true but (R) is false.

(D) (R) is true but (A) is false.

Assertion is true and reason is the correct explanation for assertion. The amazon basin is covered by dense rain forests known as selvas. They are so dense that separate crowns of trees coalesce and form thick canopy above forest floor, therefore the growth of grass is limited in this case.

18. ‘Montreal Protocol’ is related to

(A) Global Warming

(B) Ozone Depletion

(C) Air Pollution

(D) Water Pollution

Answer: B

Montreal Protocol deals with substances that deal with ozone depletion and is an international agreement designed to protect the stratospheric ozone layer.

19. Objective of Kyoto protocol was to reduce greenhouse gases emission by:

a) An average of 10 % below 1995 level by year 2010

b) An average of 8 % below 1998 level by year 2012

c) An average of 20 % below 1997 level by year 2009

d) An average of 5 % below 1990 level by year 2012

Answer: D

Under the Protocol, 37 countries commit themselves to a reduction of four greenhouse gases (GHG) (carbon dioxide, methane, nitrous oxide, sulphur hexafluoride) and two groups of gases (hydrofluorocarbons and perfluorocarbons) produced by them, and all member countries give general commitments. Annex I countries agreed to reduce their collective greenhouse gas emissions by 5.2 % from the 1990 level by the year 2012. Emission limits do not include emissions by international aviation and shipping, but are in addition to the industrial gases, chlorofluorocarbons, or CFCs, which are dealt with under the 1987 Montreal Protocol on Substances that Deplete the Ozone Layer.

20. Xerophytes can tolerate and stand against:

(A) High temperature

(B) Severe Cold

(C) Humidity

(D) The drought Conditions

Answer: D

Xerophytes become dormant in droughts and therefore are known as drought tolerant species.

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