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  • Question
  • Which one of the following is present in the largest amount in terms of percent by mass in the earth's crust


  • Options
  • A. Silicon
  • B. Oxygen
  • C. Carbon
  • D. Calcium

  • Correct Answer
  • Oxygen 


  • World Geography problems


    Search Results


    • 1. ________ is separated from India by a narrow channel of sea formed by Palk Strait and the Gulf of Mannar.

    • Options
    • A. Sri Lanka
    • B. Myanmar
    • C. Bangladesh
    • D. Pakistan
    • Discuss
    • 2. Which of the following countries border does not touch China?

    • Options
    • A. Cambodia
    • B. Laos
    • C. Vietnam
    • D. Myanmar
    • Discuss
    • 3. Which of the following countries border touches with China?

    • Options
    • A. Uzbekistan
    • B. Thailand
    • C. Vietnam
    • D. South Korea
    • Discuss
    • 4. Alps mountain range is located in which continent?

    • Options
    • A. Europe
    • B. North America
    • C. South America
    • D. Africa
    • Discuss
    • 5. Strait of Malacca separates which two land masses?

    • Options
    • A. Malay Peninsula and Indonesian Island of Sumatra
    • B. Africa and Europe
    • C. India and Sri Lanka
    • D. North America and South America
    • Discuss
    • 6. Which is the second most abundant metal in the earth's crust

    • Options
    • A. Iron
    • B. Aluminum
    • C. Copper
    • D. Zinc
    • Discuss
    • 7. In the structure of planet Earth ,below the mantle, the core is mainly made up of which one of the following

    • Options
    • A. Aluminium
    • B. Chrromium
    • C. Iron
    • D. Silicon
    • Discuss
    • 8. what is the International Date Line

    • Options
    • A. It is the Equator
    • B. it is the 00 longitude
    • C. It is the 900 east longitude
    • D. It is the 1800 longitude
    • Discuss
    • 9. During Pleistocene epoch, four glacial phases were identified. Which one of the following is the correct chronological order in which they appeared during this epoch from early times?

    • Options
    • A. Gunz - Mindel - Wurm - Riss
    • B. Gunz - Mindel - Riss - Wurm
    • C. Wurm - Riss - Mindel - Gunz
    • D. Mindel - Gunz - Riss - Wurm
    • Discuss
    • 10. What is seismic zone extending at an angle of about 45o from the base of an ocean trench, down through lithosphere to the asthenosphere known as?

    • Options
    • A. Appleton layer
    • B. Benioff zone
    • C. Conard discontinuity
    • D. Convergence zone
    • Discuss


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