Q. Albedo is defined as ________

Correct 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

More Questions on Earth

  • Q. Which of the following layers of the earth is believed to have the heaviest mineral materials of highest density ?
    A)Mantle
    B)Central core
    C)Crust
    D)Both B and C
    Answer: Central core
  • Q. If it is 4 P.M. on Monday at 150°W, what will be the time at 150°E ?
    A)4 p.m. on Sunday
    B)4 a.m. on Tuesday
    C)4 p.m. on Tuesday
    D)12 Noon on Tuesday
    Answer: 12 Noon on Tuesday
  • Q. Variation in duration of day and night is due to: 1. rotation of earth on its axis 2. revolution of earth around the sun 3. inclination of earth at an angle of 66%.
    A)1 and 3
    B)1and 2
    C)2 and 3
    D)1, 2 and 3
    Answer: 2 and 3
  • 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. On December 22, the sun: 1. is not visible at north pole 2. is only visible for a few minutes at the Antarctic Circle 3. rises south of east and sets south of west at the Tropic of Cancer 4. rises south of east and set south of west at the equator
    A)1, 3 and 4
    B)1 and 3
    C)2, 3 and 4
    D)1, 2, 3 and 4
    Answer: 1, 3 and 4
  • Q. Lunar eclipse is caused when the ________
    A)Sun comes between the earth and moon
    B)Moon comes between the sun and the earth
    C)Earth comes between the sun and the moon
    D)None of these
    Answer: Earth comes between the sun and the moon
  • Q. Which one of the following is the correct sequence of the given continents in the decreasing order of their percentage of Earth’s land?
    A)North America – Africa – Europe – South America
    B)North America – Africa – South America – Europe
    C)Africa – North America – South America – Europe
    D)Africa – North America – Europe – South America
    Answer: Africa – North America – South America – Europe
  • Q. Marble is the metamorphosed form of
    A)Sandstone
    B)Shale
    C)Basalt
    D)Limestone
    Answer: Limestone
  • Q. Magma that reaches earth’s surface and then solidifies is called
    A)Quartz
    B)Granite
    C)Lava
    D)Silicates
    Answer: Lava
  • Q. The word used to describe the shape of earth is ________
    A)Sphere
    B)Flat
    C)Circle
    D)Oblate spheroid
    Answer: Oblate spheroid
  • 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. 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. When it is 8 P.M. in Tokyo, what is the time at Panama Canal which is located at 180° W of it?
    A)12.00 A.M.
    B)4.00 P.M.
    C)8.00 A.M.
    D)12.00 Noon
    Answer: 8.00 A.M.
  • Q. Equator represents
    A)A belt (ring) around the planet Saturn
    B)Line joining North and South poles
    C)Imaginary line passing round the Earth midway between North & South poles
    D)Axis of rotation of Earth
    Answer: Imaginary line passing round the Earth midway between North & South poles
  • 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 point below the surface where an earthquake originates is called ________.
    A)Epicentre
    B)Tsunamis
    C)Focus
    D)Eye of the Earthquake
    Answer: Focus
  • Q. On which day, Earth is closest to the Sun?
    A)04-07-2019
    B)23-09-2019
    C)03-01-2019
    D)21-03-2019
    Answer: 03-01-2019
  • 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 Solar eclipse achieves totality only in limited geographical regions because ________
    A)Sun rays can reach most of the peripheral regions of the shadow of the moon due to atmospheric refraction
    B)The trajectories of the Earth around the Sun and the Moon around the Earth are not perfect circles
    C)The size of the shadow of the Moon on the Earth is small compared to the cross-section of the Earth
    D)The Earth is not a smooth flat surface, but has elevations and depressions
    Answer: The size of the shadow of the Moon on the Earth is small compared to the cross-section of the Earth
  • 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

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