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. Bridgmanite is
    A)Earth's most abundant mineral
    B)A bridge on the river Thames
    C)Name of a game
    D)Name of a music
    Answer: Earth's most abundant mineral
  • Q. Spring tides occur when ________
    A)The moon, the sun and the earth are at right angles with the earth at the apex
    B)The moon is nearest to the earth
    C)The moon is farthest from the earth
    D)The moon, the sun and the earth are in the same line
    Answer: The moon, the sun and the earth are in the same line
  • 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. 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. In the context of ‘time’ GMT means
    A)Global Mean Time
    B)General Meridian Time
    C)Greenwich Mean Time
    D)None of these
    Answer: Greenwich Mean Time
  • 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. Which of the following statements regarding the earth’s axis are true? 1. It makes an angle of 23.5o with the plane of ecliptic 2. It maintains a flexible orientation with respect to the stars 3. It is the most important fact connected with Earth-Sun relationship
    A)1 and 3
    B)1 and 2
    C)2 and 3
    D)1, 2 and 3
    Answer: 1 and 3
  • 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. Suppose if we measure the time lapse between the two Sunsets by sitting in the beach, from this we can estimate
    A)The radius of the Earth
    B)The distance between the Sun and the Earth
    C)The depth of the ocean
    D)The radius of the Sun
    Answer: The radius of the Earth
  • Q. What is the approximate equatorial circumference of the earth?
    A)40,000 Km
    B)30,000 Km
    C)35,000 Km
    D)45,000 Km
    Answer: 40,000 Km
  • Q. How many Geo-synchronous satellites are required for uninterrupted world broadcasting?
    A)2
    B)3
    C)4
    D)1
    Answer: 3
  • 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. 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. When does solar eclipse take place?
    A)When the Moon is between the Sun and Earth
    B)When the Sun is between the Moon and Earth
    C)When the Earth is between the Moon and Sun
    D)When the Moon does not lie on the line joining the Sun and Earth
    Answer: When the Moon is between the Sun and Earth
  • Q. Consider the following statements: While it is 6.30 AM (Sunday) in London, it is around 1. 2.30 AM (Sunday) in Honolulu (Hawaii) 2. 8.30 PM (Saturday) in Honolulu (Hawaii) 3. 3.30 PM (Sunday) in Tokyo 4. 1.30 AM (Sunday) in Tokyo Which of these statements is/are correct?
    A)1 and 4
    B)4 only
    C)2 and 3
    D)2 and 4
    Answer: 2 and 3
  • Q. ________ is the time taken by the Earth to return to a given point in its orbit with reference to a fixed star.
    A)Solar year
    B)Lunar year
    C)Sidereal year
    D)Tropical year
    Answer: Sidereal year
  • 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. Tides are caused by the gravitational pull of the
    A)Sun and Moon on the Earth
    B)Earth on the Moon
    C)Earth on the Sun
    D)Moon on the Earth
    Answer: Sun and Moon on the Earth
  • Q. Who proposed Continental drift theory?
    A)Alfred Hanks
    B)Alfred Wegener
    C)Alfred Worwick
    D)Alfred Mane
    Answer: Alfred Wegener
  • 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

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