Q. Variation in duration of day and night is due to: 1. rotation of earth on its axis 2. revolution of earth around the sun 3. inclination of earth at an angle of 66%.

Correct Answer

2 and 3

More Questions on Earth

  • Q. What are the imaginary lines touching both the poles of Earth called?
    A)Isobars
    B)Latitudes
    C)Longitudes
    D)Isotherms
    Answer: Longitudes
  • Q. If the earth’s axis had not been inclined: I. temperature distribution would have been uniform II. days and nights would not have occurred III. seasons would not have occurred IV. poles would not have a continuous day
    A)III and IV
    B)I, III and IV
    C)II and IV
    D)II, III and IV
    Answer: III and IV
  • Q. Which one of the following elements is most abundant in the earth’s crust?
    A)Silicon
    B)Oxygen
    C)Sulphur
    D)Carbon
    Answer: Oxygen
  • Q. At the summer solstice, which one of the following latitudes will have the longest night?
    A)60°N
    B)45°N
    C)45°S
    D)60°S
    Answer: 60°S
  • Q. If a traveller going from Vancouver to Tokyo crosses the International Date Line on Saturday, what will be the day for him at Tokyo?
    A)Sunday
    B)Friday
    C)Saturday
    D)Monday
    Answer: Sunday
  • Q. The mapping of which of the following is most difficult ?
    A)Interior of the Earth
    B)Mountains
    C)Plateaus and Plains
    D)Oceans and their depth
    Answer: Interior of the Earth
  • Q. The position of the earth in its orbit, when it is at its greatest distance from the Sun causing summer in the Northern hemisphere is ________
    A)Perigee
    B)Perihelion
    C)Aphelion
    D)Apogee
    Answer: Aphelion
  • Q. Which of the following celestial body contains Helium-4 in abundance?
    A)Venus
    B)Earth
    C)Moon
    D)Saturn
    Answer: Earth
  • Q. Equator is
    A)The girdle around the Saturn
    B)Line which connects north and south poles
    C)Imaginary line which rotates around the Earth in the centre of north and south poles
    D)Axis of the rotation of the Earth
    Answer: Imaginary line which rotates around the Earth in the centre of north and south poles
  • Q. Days and nights are similar here
    A)Antarctica
    B)Poles
    C)Main time zone
    D)Equator
    Answer: Equator
  • Q. Dolomite is a/an
    A)Igneous rock
    B)Sedimentary rock
    C)Plutonic rock
    D)Metamorphic rock
    Answer: Sedimentary rock
  • Q. When does solar eclipse take place?
    A)When the Moon is between the Sun and Earth
    B)When the Sun is between the Moon and Earth
    C)When the Earth is between the Moon and Sun
    D)When the Moon does not lie on the line joining the Sun and Earth
    Answer: When the Moon is between the Sun and Earth
  • Q. Due to gravity, acceleration at the Equator is
    A)Equal to acceleration on poles
    B)Less than acceleration on poles
    C)More than acceleration on poles
    D)Not dependant on the centrifugal acceleration of Earth
    Answer: Less than acceleration on poles
  • Q. The imaginary lines joining places of same height at equal intervals are
    A)Spot-heights
    B)Hachures
    C)Contours
    D)Isomers
    Answer: Contours
  • Q. Choose the incorrect statement
    A)The Sun's rays are vertical at all places on the days of the equinoxes
    B)All meridians are of the same length
    C)The axis of the earth is inclined at an angle of to the horizontal
    D)The summer solstice for the Southern Hemisphere is in December
    Answer: The Sun's rays are vertical at all places on the days of the equinoxes
  • Q. All the watches of a country are set according to ________
    A)Greenwich mean time
    B)Local time
    C)Standard time of the country
    D)Time of sunrise and sunset
    Answer: Standard time of the country
  • Q. An aeroplane takes off from 30° N latitude, 50° E longitude and lands at the opposite end of the earth. Where does it land?
    A)50° N Lat., 30° W Long
    B)30° N Lat., 50° W Long
    C)30° S Lat., 130° W Long
    D)30° N Lat., 130°W Long
    Answer: 30° S Lat., 130° W Long
  • Q. On December 22, the sun: 1. is not visible at north pole 2. is only visible for a few minutes at the Antarctic Circle 3. rises south of east and sets south of west at the Tropic of Cancer 4. rises south of east and set south of west at the equator
    A)1, 3 and 4
    B)1 and 3
    C)2, 3 and 4
    D)1, 2, 3 and 4
    Answer: 1, 3 and 4
  • 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. Which part of the earth’s surface receives the highest amount of insolation?
    A)Savanna region
    B)Tropical deserts
    C)Equatorial region
    D)No such criteria
    Answer: Tropical deserts

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