Q. In the earliest days when life originated on earth, the atmosphere contained ________

Correct Answer

Oxygen bound to carbon

More Questions on Earth

  • Q. Which of the following are true regarding equinoxes? 1. They occur on March 21st and September 23rd 2. They depict equal days and equal nights on March 21st and September 23rd on all places of the earth 3. All places on the earth have equal temperature during equinoxes.
    A)1 and 3 only
    B)1 and 2 only
    C)2 and 3 only
    D)1, 2 and 3
    Answer: 1 and 2 only
  • Q. Lunar eclipse does not occur every month because ________
    A)The moon's orbit is not all the time in the same plane as the earth
    B)The sun's orbit is not always in the same plane as the moon
    C)The moon revolves at a slower speed than the earth
    D)None of these
    Answer: The moon's orbit is not all the time in the same plane as the earth
  • Q. A person sets off from Alaska on a Tuesday and reaches New Zealand the next day which will be ________
    A)Thursday
    B)Tuesday
    C)Wednesday
    D)Friday
    Answer: Thursday
  • 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. 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. Magma that reaches earth’s surface and then solidifies is called
    A)Quartz
    B)Granite
    C)Lava
    D)Silicates
    Answer: Lava
  • Q. On which of the following date/dates, Winter Solstice is observed in Northern Hemisphere? I. 21st December II. 5th August III. 10th January
    A)Only 3
    B)Only 1
    C)1 and 2 Both
    D)Only 2
    Answer: Only 1
  • Q. Insolation heats up the land masses more quickly than the water bodies because ________
    A)Water needs more energy to get warm
    B)Water is liquid
    C)Landmasses are solid
    D)Rocks are bad conductors of heat
    Answer: Water needs more energy to get warm
  • 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. 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. The equatorial circumference is greater than the polar circumference by approximately ________
    A)125 km
    B)22 km
    C)67 km
    D)625 km
    Answer: 67 km
  • Q. When a ship crosses Date line from west to east ________
    A)It loses half a day
    B)It loses one day
    C)It gains one day
    D)It gains half a day
    Answer: It gains one day
  • Q. The earth revolves round the sun in its orbit by approximately ________
    A)3° per day
    B)1° per day
    C)2° per day
    D)5° per day
    Answer: 1° per day
  • Q. Which one of the following organisations is responsible for publishing topographical sheets?
    A)Indian Meteorological Department (I.M.D.)
    B)Geological Survey of India (G.S.I.)
    C)National Atlas & Thematic Mapping Organisation (N.A.T.M.O.)
    D)Survey of India (S.O.I.)
    Answer: Survey of India (S.O.I.)
  • Q. When would you record the maximum angle of incidence of the sun’s rays at the north pole?
    A)When the sun's rays fall vertically on the Tropic of Cancer
    B)March 21
    C)September 21
    D)When the sun's rays fall vertically on the Tropic of Capricorn
    Answer: When the sun's rays fall vertically on the Tropic of Cancer
  • 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. The imaginary line which connects places of similar height on map, are?
    A)Spot-Height
    B)Hachure
    C)Contour
    D)Isometric
    Answer: Contour
  • 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 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. Through which one of the following groups of countries does the Equator pass?
    A)Brazil, Sudan and Malaysia
    B)Brazil, Zambia and Malaysia
    C)Colombia, Kenya and Indonesia
    D)Venezuela, Ethiopia and Indonesia
    Answer: Colombia, Kenya and Indonesia

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