Interior of the Earth One Mark Questions

7th Standard EM

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Social Science

Time : 00:30:00 Hrs
Total Marks : 15
    5 x 1 = 5
  1. Nife is made up of ________.

    (a)

    Nickel and ferrous

    (b)

    Silica and aluminum

    (c)

    Silica and magnesium

    (d)

    Iron and magnesium

  2. The top of the cone of a volcanic mountain has a depression known as the _________.

    (a)

    crater

    (b)

    lopith

    (c)

    caldera

    (d)

    sill

  3. __________ belt is known as the “Ring of Fire”.

    (a)

    Pacific

    (b)

    Atlantic

    (c)

    Arctic

    (d)

    Antarctic

  4. An earth quake of magnitude _____________ scale can cause damage from things falling.

    (a)

    3.0

    (b)

    4.0

    (c)

    5.0

    (d)

    2.0

  5. If the crater of a volcano is of great size and is shaped like a basin, it is called a ______________

    (a)

    Vent

    (b)

    Crater

    (c)

    Caldera

    (d)

    Magma

  6. 5 x 1 = 5
  7. The core is separated from the mantle by a boundary called ______.

    ()

    Weichart-Gutenberg discontinuity

  8. The earthquake waves are recorded by an instrument known as ______.

    ()

    seismograph

  9. Magma rises to the surface and spreads over a vast area is known as ______.

    ()

    fissure eruption

  10. The scientific study of volcanoes is called _____________

    ()

    Volcanology

  11. People who study volcanoes are called ___________

    ()

    Volcanologists

  12. 5 x 1 = 5
  13. Earth quake

  14. (1)

    Silica and magnesium

  15. Sima

  16. (2)

    Blue planet

  17. Tsunami

  18. (3)

    Japanese term

  19. Earth

  20. (4)

    Barysphere

  21. Core

  22. (5)

    Sudden movement

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