Q. The Earth is an oblate spheroid and not a perfect sphere. This is because 1. the Earth has a rotational motion and the rotational speed increases as one goes from the Poles towards the Equator. 2. the Equator experiences greater gravitational pull from the Sun. 3. the intensity of sunlight received at the Equator is greater than that at the Poles.

Correct Answer

1 and 2

More Questions on Earth

  • Q. The Earth is an oblate spheroid and not a perfect sphere. This is because 1. the Earth has a rotational motion and the rotational speed increases as one goes from the Poles towards the Equator. 2. the Equator experiences greater gravitational pull from the Sun. 3. the intensity of sunlight received at the Equator is greater than that at the Poles.
    A)3 only
    B)1 only
    C)1 and 2
    D)1, 2 and 3
    Answer: 1 and 2
  • Q. The largest amount of reflection of the solar radiant energy which is reflected back into space before reaching the earth’s surface is due to ________
    A)Snow and ice covered areas of the earth
    B)Clouds
    C)Water-bodies
    D)All the above reflect nearly the same amount
    Answer: Clouds
  • Q. When does the Sun shine vertically on the Equator?
    A)Twice a year
    B)Throughout the year
    C)For six months
    D)Once a year
    Answer: Twice a year
  • 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 countries are located on the Greenwich Meridian? 1. Algeria 2. Germany 3. Guinea 4. Iceland
    A)1, 2 and 3
    B)1 only
    C)2 only
    D)1, 3 and 4
    Answer: 1 only
  • Q. Which one of the following cities does not have the same clock time as that of the other three cities at any given instant?
    A)Accra (Ghana)
    B)London (UK)
    C)Lisbon (Portugal)
    D)Addis Ababa (Ethiopia)
    Answer: Addis Ababa (Ethiopia)
  • Q. Masses of stars and galaxies are usually expressed in ________.
    A)Lunar mass
    B)Earth's mass
    C)Solar mass
    D)Neutron mass
    Answer: Solar mass
  • 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. What is ‘Sidereal Day’?
    A)The time during which the earth makes a complete rotation on its axis in respect of the fixed stars
    B)The day on which the duration of sunshine is the maximum
    C)The day on which the duration of sunshine and darkness are equal
    D)The day on which the sun reaches its maximum distance from the equator
    Answer: The time during which the earth makes a complete rotation on its axis in respect of the fixed stars
  • Q. The Earth turns through 360° in 24 hours. Each 15° longitude represents ________
    A)One hour
    B)Half an hour
    C)Forty five minutes
    D)One hour fifteen minutes
    Answer: One hour
  • Q. The acceleration due to gravity at the equator
    A)Is equal to that at the poles
    B)Is less than that at the poles
    C)Is greater than that at the poles
    D)Does not depend on the Earth centripetal acceleration
    Answer: Is less than that at the poles
  • Q. The tide at its maximum height is known as ________
    A)Spring tide
    B)Equinox
    C)Neap tide
    D)Tsunami
    Answer: Spring tide
  • Q. Gravitational force is maximum at which of the following place?
    A)At Tropic of Capricorn
    B)At Equator
    C)At Tropic of Cancer
    D)At Poles
    Answer: At Poles
  • Q. One degree of longitude on the equator is equal to a distance of ________
    A)60 miles
    B)34.5 miles
    C)50 miles
    D)69 miles
    Answer: 69 miles
  • Q. Who among the following was first to measure the circumference of the Earth?
    A)Hecataeus
    B)Eratosthenes
    C)Aristotle
    D)Herodotus
    Answer: Eratosthenes
  • Q. Consider the following statements: 1. The tropical year is shorter than the sidereal year. 2. The solar day is longer than the sidereal day. Which of the statements given above is/are correct?
    A)Both 1 and 2
    B)1 only
    C)2 only
    D)Neither 1 nor 2
    Answer: Both 1 and 2
  • Q. On Monday, the 14th June, a man crosses the International Date Line at 5 p.m. from the Asian side to the American side. Which of the following will he now assume to be the correct date and time?
    A)5 a.m. of Monday, the 14th June
    B)5 a.m. of Tuesday, the 15th June
    C)5 p.m. of Tuesday, the 15th June
    D)5 p.m. of Sunday, the 13th June
    Answer: 5 p.m. of Sunday, the 13th June
  • Q. Which star is nearest to the Earth?
    A)Pole star
    B)Sun
    C)Alpha Centauri
    D)Chitra
    Answer: Sun
  • Q. The place which has the longest day and the shortest night on 22nd December, is ________
    A)Melbourne
    B)Chennai
    C)Madrid
    D)Moscow
    Answer: Melbourne
  • Q. Owing to the equatorial bulge and the polar flattening, the polar radius of the earth falls short of the equatorial radius by about ________
    A)41 km
    B)22 km
    C)36 km
    D)53 km
    Answer: 22 km

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