Tag: introduction to rocks, volcanoes and earthquakes

Questions Related to introduction to rocks, volcanoes and earthquakes

A waterfall arises when the hard rock layer is ___________.

geography rocks and rock types lithosphere and asthenosphere rocks and rock cycle introduction to rocks, volcanoes and earthquakes

  1. Vertical

  2. Horizontal

  3. Dips gently upstream

  4. All of these

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Correct Option: D

Rocks are classified into ________________.

geography rocks and rock types lithosphere and asthenosphere rocks and rock cycle introduction to rocks, volcanoes and earthquakes

  1. Volcanic, sedimentary and organic

  2. Volcanic, igneous and sedimentary

  3. Metamorphic; sedimentary and aqueous

  4. Igneous, metamorphic, sedimentary and organic

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Correct Option: D
Explanation:
  • Rocks are basically classified as igneous, metamorphic and sedimentary rocks.
  • Organic rocks are a type of sedimentary rock which contain high amounts of organic carbon.
  • Hence option D is correct.

Igneous rocks are rocks formed by the solidification of volcanic eruptions and magma.

geography rocks and rock types lithosphere and asthenosphere rocks and rock cycle introduction to rocks, volcanoes and earthquakes

  1. True

  2. False

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Correct Option: A
Explanation:

Igneous rocks are rocks formed by the solidification (due to the cooling) of volcanic eruptions (lava) and magma.

Contact metamorphism generally occurs near_____.

geography rocks and rock types lithosphere and asthenosphere rocks and rock cycle introduction to rocks, volcanoes and earthquakes

  1. igneous intrusions

  2. sediment extrusions

  3. igneous extrusions

  4. sediment intrusions

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Correct Option: A
Explanation:

Contact metamorphism is a type of metamorphism where the texture of rock minerals are changed by means of heat, due to contact with magma, which is generally an igneous intrusion, i.e; the formed magma is trapped beneath the Earth's surface.

Which one of the following statements is NOT correct?

geography rocks and rock types lithosphere and asthenosphere rocks and rock cycle introduction to rocks, volcanoes and earthquakes

  1. Black cotton soil of north-west India was formed by the weathering of basaltic lava rocks

  2. Sedimentary rocks are distinguished from other types of rocks by the presence of distinct layers

  3. Granite has large crystals of quartz, feldspar and mica in it

  4. A metamorphic rock is softer and less compact than its original type

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Correct Option: D

Which of the following is an Argillaceous rock?

geography rocks and rock types lithosphere and asthenosphere rocks and rock cycle introduction to rocks, volcanoes and earthquakes

  1. Sandstone

  2. Shale

  3. Limestone

  4. Slate

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Correct Option: B