Q. Evidence suggests that life on Earth has existed for about ________.

Correct Answer

3.5 billion years

More Questions on Earth

  • Q. The term ‘syzygy’ is referred to when the ________
    A)Moon and sun are at right angles with reference to the earth
    B)Earth is at perihelion and moon at perigee
    C)Earth is at apehelion and moon at apogee
    D)Moon, sun and earth lie along a straight line
    Answer: Moon, sun and earth lie along a straight line
  • Q. One degree of the circumference of the earth measures(approx.) ________
    A)151 km
    B)100 km
    C)111 km
    D)175 km
    Answer: 111 km
  • Q. If a solar eclipse occurs when the moon is quite far from the earth, the eclipse would likely to be ________
    A)Annular
    B)Total
    C)Partial
    D)None of these
    Answer: Annular
  • Q. One day in Mumbai a tide occurs at 8.00 A.M. The next day it will occur at ________
    A)8.52 AM
    B)8.13 AM
    C)8.26 AM
    D)8.56 AM
    Answer: 8.52 AM
  • Q. Which of these statements are correct? 1. Earth is the fourth largest planet of the solar system 2. Earth’s circumference is about 45000 km 3. Earth’s polar diameter is about 43 km shorter than its equatorial diameter 4. Earth has a total surface area of 510 million sq.km
    A)2 and 3
    B)1 and 2
    C)1 and 4
    D)3 and 4
    Answer: 3 and 4
  • Q. The Tropic of Cancer does not pass through
    A)Bangladesh
    B)India
    C)Pakistan
    D)Myanmar
    Answer: Pakistan
  • Q. The incoming short-wave solar radiation is balanced by an equal amount of long-wave radiation from earth going back to space. This is known as ________
    A)Heat balance of earth
    B)Earth radiation
    C)Wave balance of earth
    D)Radiation exchange
    Answer: Heat balance of earth
  • 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 these is the longest?
    A)90° E
    B)0° Meridian
    C)180° E-W
    D)All are equal
    Answer: All are equal
  • 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. 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. The sun is never overhead at any time in : I. North Temperate Zone II. South Temperate Zone III. North Frigid Zone IV. Torrid Zone
    A)II and III
    B)III only
    C)I, II and III
    D)I, II, III and IV
    Answer: I, II and III
  • Q. Through which one of the following countries the Tropic of Cancer does not pass through?
    A)Myanmar
    B)Bangladesh
    C)China
    D)Nepal
    Answer: Nepal
  • Q. Days and nights are similar here
    A)Antarctica
    B)Poles
    C)Main time zone
    D)Equator
    Answer: Equator
  • Q. Who was the first to measure the circumference of the Earth?
    A)Eratosthenes
    B)Erechtheus
    C)Aegeus
    D)Apheidas
    Answer: Eratosthenes
  • Q. What is the term used for the day on 23 September when day and night are equal throughout the world?
    A)Winter Solstice
    B)Autumnal Equinox
    C)Astronomical Equinox
    D)Spring Equinox
    Answer: Autumnal Equinox
  • 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. The imaginary line which connects places of similar height on map, are?
    A)Spot-Height
    B)Hachure
    C)Contour
    D)Isometric
    Answer: Contour
  • 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 region which is resistant to the transformation of macro structure, is called?
    A)Tectonic plate
    B)Firm structure
    C)Ancient structure
    D)Shield
    Answer: Shield

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