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  • Question
  • The R-horizon of soil horizon consists of


  • Options
  • A. unweathered bedrock
  • B. weathered parent material
  • C. plant litter at various levels of decomposition
  • D. None of the above

  • Correct Answer
  • unweathered bedrock 


  • World Geography problems


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    • 1. The part of the earth and thin layer of air above its surface, which support life on earth, are referred to as

    • Options
    • A. stratosphere
    • B. ionosphere
    • C. biosphere
    • D. mesosphere
    • Discuss
    • 2. The Penumbra is

    • Options
    • A. the outer portion of the moon's shadow
    • B. formed by the tangent that intersects between the sun and the moon
    • C. both (a) and (b)
    • D. None of the above
    • Discuss
    • 3. The polar regions of earth cannot support forest growth because

    • Options
    • A. the growing season is short in these areas
    • B. the ground is often frozen or snow or ice covered
    • C. the rainfall is very low
    • D. All of these factors.
    • Discuss
    • 4. The major crops found in Sudan are

    • Options
    • A. rice, barley, bananas, cocoa
    • B. maize, cotton, bananas, groundnut
    • C. bajra, oats, tobacco
    • D. wool, wine, jute
    • Discuss
    • 5. The major control over the form of the developing slope is exerted by

    • Options
    • A. inputs to the hill slope
    • B. outputs from the hill slope
    • C. balance between inputs and outputs from the hill slope system
    • D. None of the above
    • Discuss
    • 6. The propagation of radio signals is greatly influence by

    • Options
    • A. troposphere
    • B. ionosphere
    • C. exosphere
    • D. thermosphere
    • Discuss
    • 7. The planets that are called superior planets are

    • Options
    • A. Mercury, Venus, Earth, Mars and Jupiter
    • B. Jupiter, Saturn, Uranus, Neptune and Pluto
    • C. Mercury, Pluto, Venus, Neptune and Earth
    • D. Earth, Uranus, Mars, Saturn and Jupiter
    • Discuss
    • 8. The polar Easterlies lie at

    • Options
    • A. 0-30? latitude
    • B. 30-60? latitude
    • C. 60-90? latitude
    • D. 90? latitude
    • Discuss
    • 9. The region of three W's that is wheat, wool and wine is

    • Options
    • A. mediterranean climatic regions
    • B. china type climatic regions
    • C. steppe type climatic regions
    • D. equatorial regions
    • Discuss
    • 10. The reaction between compounds and oxygen is called

    • Options
    • A. oxidation
    • B. hydrolysis
    • C. carbonation
    • D. solution
    • Discuss


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