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Earth Movements — Endogenic and Exogenic Forces — GK Questions with Answers

12 questions
  1. Which statement(s) about earth movements is/are false? 1. They are mainly of two kinds. 2. Slow movements build continents and mountains. 3. Sudden movements cause earthquakes and volcanoes.
    1. 1 only
    2. 2 only
    3. 1 and 3
    4. None
    Show answer

    Answer: (D) None

    All three statements are true, so none is false.

  2. Choose the true statements — 1. The place where seismic waves originate is the epicentre. 2. The shock is felt first at the epicentre. 3. The greatest damage occurs near the epicentre.
    1. 1 only
    2. 2 only
    3. 1 and 2
    4. 2 and 3
    Show answer

    Answer: (D) 2 and 3

    Waves originate at the focus, not the epicentre.

  3. True statements about the Benioff zone — 1. It is a seismic zone. 2. Its earthquakes are linked to the lithosphere sinking down. 3. It is the subduction zone of plates at a convergent boundary.
    1. 1 only
    2. 2 only
    3. 1 and 3
    4. All three
    Show answer

    Answer: (D) All three

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  4. Which statement(s) is/are false? 1. A volcano is an opening or crack through which gas, ash or magma reach the surface. 2. The lava of an eruption is mainly molten silicate. 3. Stromboli is called the Lighthouse of the Mediterranean.
    1. 1 only
    2. 2 only
    3. 1 and 3
    4. None
    Show answer

    Answer: (D) None

    All three statements are true.

  5. True statements about weathering — 1. Rocks weakening and breaking where they lie is weathering. 2. It is of three kinds — physical, chemical and biological. 3. It supplies material for erosion.
    1. 1 only
    2. 2 only
    3. 1 and 3
    4. All three
    Show answer

    Answer: (D) All three

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  6. Choose the true statements — 1. A desert basin ringed by mountains is a bolson. 2. Water collecting in a bolson forms a playa lake. 3. In the Arabian desert a playa is called a sebkha.
    1. 1 only
    2. 2 only
    3. 1 and 2
    4. 1 and 3
    Show answer

    Answer: (C) 1 and 2

    Sebkha is the Saharan name; in Arabia it is khabari/mamlaha.

  7. Which seismic wave travels like a sound wave?
    1. P wave
    2. S wave
    3. L wave
    4. P and L waves
    Show answer

    Answer: (A) P wave

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  8. When a river leaving the mountains drops large boulders behind, which landforms form? 1. Alluvial cone 2. Alluvial fan 3. Meander 4. Rapids
    1. 1 only
    2. 1 and 2
    3. 2 and 3
    4. 1 and 3
    Show answer

    Answer: (B) 1 and 2

    Both are piedmont deposits; many fans merge into the bhabar.

  9. The "Ring of Fire" is associated with — 1. Forest fires 2. The Pacific Ocean 3. Volcanoes 4. Earthquakes (UPPCS 2008)
    1. 1, 2 and 3
    2. 2 and 3
    3. 2 and 4
    4. 2, 3 and 4
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    Answer: (D) 2, 3 and 4

    The belt of volcanoes and earthquakes around the Pacific.

  10. The process by which rocks break up where they lie is called —
    1. Attrition
    2. Erosion
    3. Weathering
    4. Abrasion
    Show answer

    Answer: (C) Weathering

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  11. Which of these landforms are made by erosion? 1. Moraine 2. U-shaped valley 3. Delta 4. Waterfall 5. Zeugen
    1. 1, 2 and 3
    2. 2, 3 and 4
    3. 2, 4 and 5
    4. 3, 4 and 5
    Show answer

    Answer: (C) 2, 4 and 5

    Moraines and deltas are depositional.

  12. On which scale is an earthquake's magnitude — the energy released — expressed?
    1. Mercalli scale
    2. Richter scale
    3. Beaufort scale
    4. Mohs scale
    Show answer

    Answer: (B) Richter scale

    The Mercalli scale measures local effects (intensity).

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