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Prelims 2024 · Q10 · Mountains, deserts & physical features

Consider the following information :

RegionName of the mountain rangeType of mountain
1. Central AsiaVosgesFold mountain
2. EuropeAlpsBlock mountain
3. North AmericaAppalachiansFold mountain
4. South AmericaAndesFold mountain

In how many of the above rows is the given information correctly matched ?

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Answer: B. Row 1 is wrong: the Vosges are in Europe (France), and they are a block mountain. Row 2 is wrong: the Alps are young fold mountains, not block mountains. Row 3 is correct: the Appalachians are old fold mountains in North America. Row 4 is correct: the Andes are young fold mountains. So only two rows are correct.

Watch for: The Vosges are the classic example of a block mountain, so the type looks familiar, but the region is wrong.

Why the other options are wrong
  • A. Wrong because both the Appalachian and Andes rows are correct.
  • C. Wrong because both the Vosges and Alps rows contain errors.
  • D. Wrong because the Vosges are in Europe and the Alps are fold mountains.

Source to check: NCERT Class 7 Our Environment, Chapter 3 'Our Changing Earth'; Goh Cheng Leong, Certificate Physical and Human Geography, Chapter 'Mountains'

Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.