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

Correct Answer

3.5 billion years

More Questions on Earth

  • Q. When and where did the concept of the Earth Hour started?
    A)April, 2008 in Tokyo, Japan
    B)June, 2007 in Christchurch, New Zealand
    C)May, 2009 in Colombo, Srilanka
    D)March, 2007 in Sydney, Australia
    Answer: March, 2007 in Sydney, Australia
  • Q. Equinox occurs when the Sun is vertically above
    A)Poles
    B)Tropic of Capricorn
    C)Tropic of Cancer
    D)Equator
    Answer: Equator
  • 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. After Sun, which is the closest star to the Earth?
    A)Proxima centauri
    B)Vega
    C)Sirius
    D)Alpha centauri
    Answer: Proxima centauri
  • Q. When it is noon along 82° 30′ longitude, along what degree of longitude it will be 6.30 a.m.?
    A)0° E or W
    B)Along 165° E
    C)Along 67° 30' W
    D)Along 82° 31' W
    Answer: 0° E or W
  • 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. The process of water getting evaporated from the surface of leaves is known as
    A)Transpiration
    B)Evaporation
    C)Evapo-transpiration
    D)Transportation
    Answer: Transpiration
  • Q. The word “Isoneph” represents the lines of equal
    A)Rain
    B)Cloudiness
    C)Salinity
    D)Pressure
    Answer: Cloudiness
  • 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
  • Q. What is the position of the Earth when it is at the greatest distance from the Sun?
    A)Perihelion
    B)Aphelion
    C)Antipode
    D)Aldiatc
    Answer: Aphelion
  • Q. The amount of insolation received at a place on the surface of the earth depends on ________
    A)Its longitude
    B)Its climate
    C)Its latitude
    D)Both (a)and (b)
    Answer: Both (a)and (b)
  • Q. The most abundant metal in the Earth’s Crust is
    A)Aluminium
    B)Zinc
    C)Copper
    D)Iron
    Answer: Aluminium
  • 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. 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. The phenomenon of an opening occurring in the Earth’s surface through which a Jet of hot water and steam is forced out at irregular intervals is called
    A)Cyclone
    B)Hot spring
    C)Geyser
    D)Volcano
    Answer: Geyser
  • 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. 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. 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. Which of the following is the International Date line?
    A)90° eastern longitude
    B)Equator
    C)0° longitude
    D)180° longitude
    Answer: 180° longitude
  • Q. Which among the following statments is true regarding International Date Line?
    A)It is a big circle
    B)It is 180° Longitude
    C)It is a straight line
    D)It is a curved line beyond Earth
    Answer: It is 180° Longitude

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