Q. Suppose if we measure the time lapse between the two Sunsets by sitting in the beach, from this we can estimate

Correct Answer

The radius of the Earth

More Questions on Earth

  • Q. What is the approximate circumference of Earth?
    A)80,000 Km
    B)40,000 Km
    C)60,000 Km
    D)1,00,000 Km
    Answer: 40,000 Km
  • 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. Which of the following are true regarding the crust of the earth? I. It is the outer thin layer with a total thickness of about 100 km II. It forms around 0.5% of the earth’s volume III. The outer covering of the crust is of sedimentary material IV. The lower layer of the crust consists of basaltic and ultra-basic rocks
    A)I, II and IV
    B)I and II
    C)I, II and III
    D)I, II, III and IV
    Answer: I, II and IV
  • Q. The antipodal position of a place located at 35° south and 80° west is
    A)100°north and 80° East
    B)55° north and 80° East
    C)35° north and 100° East
    D)55° south and 10° East
    Answer: 35° north and 100° East
  • 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. 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 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. “Mohs’ Scale” is used to indicate the ________
    A)Degree of viscosity of a liquid
    B)Degree of brittleness of a substance
    C)Degree of hardness of minerals.
    D)Degree of elasticity of a material
    Answer: Degree of hardness of minerals.
  • 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. The core of the Earth is made up of ________
    A)Both iron and silica in the liquid form
    B)Mainly of iron in the liquid form
    C)Mainly of nickel in the liquid form
    D)Both iron and magnesium in the plastic state
    Answer: Both iron and magnesium in the plastic state
  • Q. The total surface area of earth is ________
    A)710 million sq km
    B)510 million sq km
    C)610 million sq km
    D)810 million sq km
    Answer: 510 million sq km
  • Q. Isobar lines show
    A)Depth
    B)Pressure
    C)Rain
    D)Time
    Answer: Pressure
  • Q. What is the interval between a high tide and low tide at a given place?
    A)15 hours 30 minutes
    B)12 hours
    C)12 hours 26 minutes
    D)24 hours
    Answer: 12 hours 26 minutes
  • Q. What is the term used for the day on 23 September when day and night are equal throughout the world?
    A)Winter Solstice
    B)Autumnal Equinox
    C)Astronomical Equinox
    D)Spring Equinox
    Answer: Autumnal Equinox
  • 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. The point in the orbit of a moon that is farthest from the Earth and at which the moon’s velocity is at a minimum, the known as ________
    A)Umbra
    B)Apehelion
    C)Apogee
    D)Perihelion
    Answer: Apogee
  • Q. What are the imaginary lines encircling the Earth horizontally called?
    A)Isobars
    B)Latitudes
    C)Longitudes
    D)Isotherms
    Answer: Latitudes
  • Q. The position of a planet when it is nearest to the Sun, is called ________
    A)Apigee
    B)Perihelion
    C)Apihelion
    D)Perigee
    Answer: Perihelion
  • 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. Antipodes are ________
    A)Places located at a point where degree of latitude is equal to degree of longitude
    B)Lines joining places having a time difference of 12 hours
    C)Places diametrically opposite on earth's surface
    D)Lines joining places having the same depths
    Answer: Places diametrically opposite on earth's surface

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