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MCQs

Total Questions : 68 | Page 5 of 7 pages
Question 41. The density of the Earth at its centre is said to be ________
  1.    9.9 g/cc
  2.    8.8 g/cc
  3.    13 g/cc
  4.    12.7 g/cc
 Discuss Question
Answer: Option C. -> 13 g/cc
Answer: (c).13 g/cc
Question 42. There is a hypothesis that the inner core is made up chiefly of iron and nickel.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 43. What is the thickness of the inner core?
  1.    790 km
  2.    1790 km
  3.    2790 km
  4.    3790 km
 Discuss Question
Answer: Option B. -> 1790 km
Answer: (b).1790 km
Question 44. The layer which is believed to be the source of volcanic activity is ________
  1.    Inner core
  2.    Outer core
  3.    Asthenosphere
  4.    Mohorovicic layer
 Discuss Question
Answer: Option C. -> Asthenosphere
Answer: (c).Asthenosphere
Question 45. What is the change in volume when water freezes?
  1.    10% decrease
  2.    20% increase
  3.    20% decrease
  4.    10% increase
 Discuss Question
Answer: Option D. -> 10% increase
Answer: (d).10% increase
Question 46. The form of rock not found by freezing-thawing cycle is ________
  1.    Angular
  2.    Sub angular
  3.    Spherical
  4.    Irregular
 Discuss Question
Answer: Option C. -> Spherical
Answer: (c).Spherical
Question 47. The process that is not considered under mechanical weathering is _______
  1.    Carbonation
  2.    Temperature variation
  3.    Unloading
  4.    Insolation
 Discuss Question
Answer: Option A. -> Carbonation
Answer: (a).Carbonation
Question 48. Which of the following about weathering is not true?
  1.    It is a natural process
  2.    Mechanical disintegration is involved
  3.    Chemical decomposition is involved
  4.    It is a rapid process
 Discuss Question
Answer: Option D. -> It is a rapid process
Answer: (d).It is a rapid process
Question 49. The processes by which Scree deposits are formed are ________
  1.    Chemical attack
  2.    Exposure to sunlight
  3.    Water movement
  4.    Heaving and rolling
 Discuss Question
Answer: Option D. -> Heaving and rolling
Answer: (d).Heaving and rolling
Question 50. Where can one find the process of exudation occur?
  1.    Plains
  2.    Seashore
  3.    Hills
  4.    Waterfalls
 Discuss Question
Answer: Option B. -> Seashore
Answer: (b).Seashore

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