Q. ________ is a natural electrical phenomenon characterized by the appearance of streams of reddish or greenish light in the sky, especially near the northern or southern magnetic pole

Correct Answer

Aurora

More Questions on Earth

  • Q. Which of the following is not an effect produced by rotation of earth?
    A)Winds change their directions
    B)It causes days and nights
    C)All heavenly bodies like sun, moon, planets appear to move from East to West
    D)Poles have days and nights of 6 months duration
    Answer: Poles have days and nights of 6 months duration
  • Q. Which among the following imaginary line lies at 0° latitude?
    A)Tropic of Capricorn
    B)Equator
    C)Tropic of Cancer
    D)Prime Meridian
    Answer: Equator
  • 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. When it is 12 noon at Greenwich, what is the time at New York (74° W) ?
    A)7.04 p.m.
    B)4.56 p.m.
    C)4.56 a.m.
    D)7.04 a.m.
    Answer: 7.04 a.m.
  • Q. Which one of the following minerals occurs abundantly in the Earth’s crust?
    A)Manganese
    B)Bauxite
    C)Silica
    D)Iron
    Answer: Silica
  • Q. What are the imaginary lines touching both the poles of Earth called?
    A)Isobars
    B)Latitudes
    C)Longitudes
    D)Isotherms
    Answer: Longitudes
  • Q. The distance between two consecutive longitudes (91° E and 92° E) at the Poles is
    A)25 km
    B)0 km
    C)18 km
    D)111 km
    Answer: 0 km
  • Q. The difference in the duration of day and night increases as one moves from ________
    A)Poles to equator
    B)West to east
    C)East and west of the prime meridian
    D)Equator to poles
    Answer: Equator to poles
  • Q. The area of the Earth’s total surface is of the order of ________.
    A)400 million square kilometres
    B)510 million square kilometres
    C)450 million square kilometres
    D)350 million square kilometres
    Answer: 510 million square kilometres
  • Q. Why are winters more severe in Southern Hemisphere than in the Northern Hemisphere?
    A)Because of more iceberg activity in Southern Hemisphere
    B)Earth is tilted towards the Sun in the Northern Hemisphere
    C)Northern Hemisphere receives more sunlight
    D)Southern Hemisphere is less inhabited
    Answer: Because of more iceberg activity in Southern Hemisphere
  • Q. Study the following diagram and say which of the given statements is not correct regarding it ________
    A)There is continuous day north of the Arctic Circle
    B)It shows the earth's orbital position on 21st June
    C)All parallels in the northern hemisphere have days equal to nights
    D)South of the equator the length of the day decreases with increasing latitude
    Answer: All parallels in the northern hemisphere have days equal to nights
  • 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. 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. Lunar eclipse occurs on ________
    A)Half moon
    B)New moon
    C)Full moon
    D)Quarter moon
    Answer: Full moon
  • 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. Low tides are
    A)Moderate
    B)Strong
    C)Weak
    D)Very Weak
    Answer: Weak
  • Q. Masses of stars and galaxies are usually expressed in ________.
    A)Lunar mass
    B)Earth's mass
    C)Solar mass
    D)Neutron mass
    Answer: Solar mass
  • Q. The seasonal contrasts are maximum in ________
    A)Sub tropics
    B)Low latitudes
    C)Mid-latitudes
    D)High latitudes
    Answer: Mid-latitudes
  • Q. The Earth is an oblate spheroid and not a perfect sphere. This is because 1. the Earth has a rotational motion and the rotational speed increases as one goes from the Poles towards the Equator. 2. the Equator experiences greater gravitational pull from the Sun. 3. the intensity of sunlight received at the Equator is greater than that at the Poles.
    A)3 only
    B)1 only
    C)1 and 2
    D)1, 2 and 3
    Answer: 1 and 2
  • 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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