Q. Which of the following are true regarding the crust of the earth? I. It is the outer thin layer with a total thickness of about 100 km II. It forms around 0.5% of the earth’s volume III. The outer covering of the crust is of sedimentary material IV. The lower layer of the crust consists of basaltic and ultra-basic rocks

Correct Answer

I, II and IV

More Questions on Earth

  • Q. How many Geo-synchronous satellites are required for uninterrupted world broadcasting?
    A)2
    B)3
    C)4
    D)1
    Answer: 3
  • Q. A one-day Cricket match between India and England starts at 10.00 A.M. in London. The direct telecast of the match will begin in India at ________
    A)3.30 P.M.
    B)3.30 A.M.
    C)8.30 A.M.
    D)8.30 P.M.
    Answer: 3.30 P.M.
  • Q. The Solar eclipse achieves totality only in limited geographical regions because ________
    A)Sun rays can reach most of the peripheral regions of the shadow of the moon due to atmospheric refraction
    B)The trajectories of the Earth around the Sun and the Moon around the Earth are not perfect circles
    C)The size of the shadow of the Moon on the Earth is small compared to the cross-section of the Earth
    D)The Earth is not a smooth flat surface, but has elevations and depressions
    Answer: The size of the shadow of the Moon on the Earth is small compared to the cross-section of the Earth
  • Q. The imaginary line which connects places of similar height on map, are?
    A)Spot-Height
    B)Hachure
    C)Contour
    D)Isometric
    Answer: Contour
  • Q. The Earth rotates on its axis at an inclination of
    A)21.5°
    B)23.5°
    C)22.5°
    D)20.0°
    Answer: 23.5°
  • Q. Which of the following pairs of metals are supposed to constitute the internal core of the earth?
    A)Iron and Copper
    B)Chromium and Iron
    C)Magnesium and Lead
    D)Nickel and Iron
    Answer: Nickel and Iron
  • Q. The deflection of the winds to the right in the northern hemisphere is caused by
    A)Uneven heating of the Earth
    B)Revolution of the Earth
    C)Rotation of the Earth
    D)All the above
    Answer: Rotation of the Earth
  • Q. Assume that the moon takes exactly 30 days to complete the cycle and also assume that it rises in the east exactly at 6.48 p.m., on the first day. On the fourth day, at what time will it rise?
    A)10.00 p.m
    B)8.24 p.m
    C)9. 12 p.m
    D)11.48 p.m
    Answer: 10.00 p.m
  • Q. Green House Effect’ means ________
    A)Trapping of solar energy due to atmospheric carbon dioxide
    B)Pollution in houses in tropical regions
    C)Trapping of solar energy due to atmospheric oxygen
    D)Cultivation in green houses so as to check pollution
    Answer: Trapping of solar energy due to atmospheric carbon dioxide
  • Q. Evidence suggests that life on Earth has existed for about ________.
    A)35 million years
    B)3.5 million years
    C)35 billion years
    D)3.5 billion years
    Answer: 3.5 billion years
  • Q. The earth rotates around its axis from ________
    A)South to north
    B)North to south
    C)East to west
    D)West to east
    Answer: West to east
  • Q. What is the position of the Earth when it is at the greatest distance from the Sun?
    A)Perihelion
    B)Aphelion
    C)Antipode
    D)Aldiatc
    Answer: Aphelion
  • Q. The approximate circumference of the Earth is
    A)25,000 km
    B)13,000 km
    C)20,000 km
    D)40,000 km
    Answer: 40,000 km
  • Q. The science of drawing map is called
    A)Topology
    B)Cartography
    C)Geography
    D)Geology
    Answer: Cartography
  • Q. Which of the following statements with regard to the term ‘great circle’ is not correct?
    A)Only one great circle can be drawn on a sphere
    B)Equator is a great circle
    C)A ship can save fuel and time by following the great circle arc between two points
    D)A great circle results when a plane passes through the centre of a sphere
    Answer: Only one great circle can be drawn on a sphere
  • Q. If news is broadcast from London at 10:30 AM, at what time it will be heard at Baghdad (45°E)?
    A)1:30 PM
    B)7:30 AM
    C)9:00 AM
    D)12:00 Noon
    Answer: 1:30 PM
  • Q. Consider a specific point on the surface of the earth (say Delhi). The temperature at a given time of day (say 12.00 Noon) will in general be higher in summer than in winter. This is because ________
    A)The earth is closer to the sun in summer than in winter
    B)The evaporation of water from atmosphere results in precipitation occurring in winter alone
    C)Sun-rays falling on the earth are inclined more towards the sun in winter
    D)The axis of the earth is inclined more towards the sun in winter
    Answer: Sun-rays falling on the earth are inclined more towards the sun in winter
  • Q. Which of the following pairs is not correctly matched?
    A)23° 20' N latitude - Tropic of Cancer
    B)66° 33' N latitude - Arctic Circle
    C)180°E or 180°W longitude- International Date Line
    D)0°E or 0°W longitude – Equator
    Answer: 0°E or 0°W longitude – Equator
  • Q. What is the interval between a high tide and low tide at a given place?
    A)15 hours 30 minutes
    B)12 hours
    C)12 hours 26 minutes
    D)24 hours
    Answer: 12 hours 26 minutes
  • Q. Which of the following is the International Date line?
    A)90° eastern longitude
    B)Equator
    C)0° longitude
    D)180° longitude
    Answer: 180° longitude

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