Q. How old is Earth, It is decided by which of the following processes?

Correct Answer

Radiometric Dating

More Questions on Earth

  • Q. In the earliest days when life originated on earth, the atmosphere contained ________
    A)Oxygen in fixed form
    B)Free oxygen
    C)No oxygen
    D)Oxygen bound to carbon
    Answer: Oxygen bound to carbon
  • Q. The Contour line is those imaginary line which show?
    A)Areas of similar height
    B)Areas of similar atmospheric pressure
    C)Areas of similar temperature
    D)Equal Sunning areas
    Answer: Areas of similar height
  • Q. What is the difference between the Local time and Greenwich time one degree longitude?
    A)6 minutes
    B)2 minutes
    C)4 minutes
    D)8 minutes
    Answer: 4 minutes
  • Q. What percentage of insolation is received by the earth’s surface?
    A)0.66
    B)0.47
    C)0.51
    D)0.87
    Answer: 0.47
  • Q. Which of the following statements is true?
    A)Both latitudes and longitudes are great circles
    B)Arctic circle, antarctic circle and equator are great circles
    C)Both equator and longitudes are great circles
    D)Both equator and latitudes are great circles
    Answer: Both equator and longitudes are great circles
  • Q. Bridgmanite is
    A)Earth's most abundant mineral
    B)A bridge on the river Thames
    C)Name of a game
    D)Name of a music
    Answer: Earth's most abundant mineral
  • Q. Which one of the following is not the effect of the revolution of the Earth.
    A)Determination of latitudes
    B)Change of seasons
    C)Length of days and nights
    D)Change in the direction of winds and ocean currents
    Answer: Change in the direction of winds and ocean currents
  • Q. The axis of rotation of earth is tilted by 23.5° to the plane of revolution around the sun. The latitude of Mumbai is less than 23.5° whereas the latitude of Delhi is more than 23.5°. Which one of the following statements in this regard is correct?
    A)At Mumbai the sun can come overhead, but it will never do so at Delhi
    B)The sun can come overhead at both these places
    C)The sun will never come overhead at either of these places
    D)At Delhi the sun can come overhead but it will never do so at Mumbai
    Answer: At Mumbai the sun can come overhead, but it will never do so at Delhi
  • Q. When it is 12.00 noon at Delhi (77° 10’E), people at another place on earth take their 6 o’clock morning tea. The longitude of that place is ________
    A)172°30' E
    B)17°30' E
    C)12°50' W
    D)17°E
    Answer: 12°50' W
  • Q. Spring tides occur when ________
    A)The moon, the sun and the earth are at right angles with the earth at the apex
    B)The moon is nearest to the earth
    C)The moon is farthest from the earth
    D)The moon, the sun and the earth are in the same line
    Answer: The moon, the sun and the earth are in the same line
  • 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. The earth is at the least distance from the sun (Perihelion) on ________
    A)July 4th
    B)December 22nd
    C)January 3rd
    D)June 21st
    Answer: January 3rd
  • Q. Why does Russia have many local time differences?
    A)Because of its long east-west stretches
    B)Because it keeps trade relations with many countries of the world
    C)Because it experiences a wide range of climatic conditions
    D)Because it is divided into a number of states on political grounds
    Answer: Because of its long east-west stretches
  • Q. Which of the following best describes longitude?
    A)The angular distance east or west of the Greenwich meridian
    B)An imaginary line joining north and south poles
    C)The distance between a place east or west of the Greenwich Meridian
    D)The position of a place on earth's surface with reference to the Prime Meridian
    Answer: The angular distance east or west of the Greenwich meridian
  • Q. The most abundant metal in the Earth’s Crust is
    A)Aluminium
    B)Zinc
    C)Copper
    D)Iron
    Answer: Aluminium
  • 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. The latitude of a place expresses its angular position relative to the plane of
    A)North pole
    B)Axis of the Earth
    C)Equator
    D)South pole
    Answer: Equator
  • Q. The International Date Line makes slight deviation from 180° meridian so that it ________
    A)Does not divide a group of islands under the same administration
    B)Divides the land masses under the same administration
    C)Does not divide the Bering strait
    D)Divides the Pacific Ocean into two equal halves
    Answer: Does not divide a group of islands under the same administration
  • Q. We always see the same surface of the Moon because
    A)It takes the same time to rotate on its axis and moving around the Earth
    B)It is smaller than the Earth
    C)It rotates on its axis
    D)It moves with the same speed at which Earth moves around the Sun
    Answer: It takes the same time to rotate on its axis and moving around the Earth
  • Q. The speed of rotation of the earth is the highest ________
    A)Along the Tropic of Cancer
    B)Along the Equator
    C)At the North Pole
    D)Along the Arctic Circle
    Answer: Along the Equator

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