Q. ________ is the time taken by the Earth to return to a given point in its orbit with reference to a fixed star.

Correct Answer

Sidereal year

More Questions on Earth

  • Q. The difference in the duration of day and night increases as one moves from ________
    A)Poles to equator
    B)West to east
    C)East and west of the prime meridian
    D)Equator to poles
    Answer: Equator to poles
  • 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. Of the total volume of the earth, which layer forms the major part ?
    A)Mantle
    B)Sial
    C)Sima
    D)Core
    Answer: Core
  • Q. Solar eclipse occurs when ________
    A)Moon comes between sun and earth
    B)Earth comes between sun and moon
    C)Moon is at right angle to the earth
    D)Sun comes between moon and earth
    Answer: Moon comes between sun and earth
  • 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. The boundary between Earth’s Crust and Mantle is ________.
    A)Conrad discontinuity
    B)Moho discontinuity
    C)Lehman discontinuity
    D)Gutenberg discontinuity
    Answer: Moho discontinuity
  • Q. During Lunar eclipse, which of the following is at the centre?
    A)Sun
    B)Earth
    C)Moon
    D)Any other planet
    Answer: Earth
  • Q. The revelations of a satellite photograph of the earth are as follows: 1. the Southern hemisphere bulges slightly more than the Northern hemisphere 2. it is slightly pear shaped ellipsoid of rotation 3. the polar axis of the earth is slightly shorter than the equatorial axis 4. the equatorial circumference is about 40,000km Which of the above statements are correct ?
    A)1, 2 and 4
    B)1, 2 and 3
    C)1, 2, 3 and 4
    D)2, 3 and 4
    Answer: 2, 3 and 4
  • 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 core of the Earth is made up of ________
    A)Both iron and silica in the liquid form
    B)Mainly of iron in the liquid form
    C)Mainly of nickel in the liquid form
    D)Both iron and magnesium in the plastic state
    Answer: Both iron and magnesium in the plastic state
  • Q. Low tides are
    A)Moderate
    B)Strong
    C)Weak
    D)Very Weak
    Answer: Weak
  • 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 planet in our solar system is nearly as big as the Earth?
    A)Venus
    B)Mercury
    C)Mars
    D)Pluto
    Answer: Venus
  • Q. In how much time, Earth rotates once on its axis?
    A)23 hours 10 minutes 2 sec
    B)23 hours 30 minutes
    C)23 hours 56 minutes 4.9 sec
    D)24 hours
    Answer: 23 hours 56 minutes 4.9 sec
  • Q. The word used to describe the shape of earth is ________
    A)Sphere
    B)Flat
    C)Circle
    D)Oblate spheroid
    Answer: Oblate spheroid
  • Q. The Tropic of Cancer does not pass through
    A)Bangladesh
    B)India
    C)Pakistan
    D)Myanmar
    Answer: Pakistan
  • Q. How old is Earth, It is decided by which of the following processes?
    A)Gravity Method
    B)Geologic Time Scale
    C)Radiometric Dating
    D)Fossil Dating
    Answer: Radiometric Dating
  • Q. Which of the following statements regarding the earth’s axis are true? 1. It makes an angle of 23.5o with the plane of ecliptic 2. It maintains a flexible orientation with respect to the stars 3. It is the most important fact connected with Earth-Sun relationship
    A)1 and 3
    B)1 and 2
    C)2 and 3
    D)1, 2 and 3
    Answer: 1 and 3
  • Q. The time of Cairo is 2 hours ahead of Greenwich time Cairo is situated at ________
    A)30° East
    B)27° East
    C)27° West
    D)30° West
    Answer: 30° East
  • Q. Albedo is defined as ________
    A)Celestial bodies in earth's atmosphere which add to the greenhouse effect
    B)UV radiations sent out by the SUN
    C)A substance contained in the upper atmospheric layers of the earth, which is responsible for the reflection of/a part of solar radiations
    D)The amount of insolation reflected back to the space by the top of atmosphere, by clouds and ice-covered areas of the Earth's surface
    Answer: The amount of insolation reflected back to the space by the top of atmosphere, by clouds and ice-covered areas of the Earth's surface

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