Tag: lithosphere and asthenosphere

Questions Related to lithosphere and asthenosphere

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

Show answer
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

Show answer
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

Show answer
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

Show answer
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

Show answer
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

Show answer
Correct Option: B

Igneous rocks that have the lowest content of silica are known as______

geography plate tectonics lithosphere and asthenosphere rocks and rock cycle rocks and rock types

  1. felsic rocks

  2. porphyry

  3. mafic rocks

  4. ultramafic rocks

Show answer
Correct Option: D
Explanation:

Ultramafic rocks are the igneous rocks that have the lowest content of silica.


Felsic rocks- rich in feldspar and silicon (igneous rock).

Porphyry- igneous rock having feldspar & quartz crystals.
Mafic rocks- igneous rocks rich in magnesium and iron.

Thus the answer is Ultramafic rocks.

The volcanoes which are not active now but have the possibility of eruption in the future are known as ______________.

geography plate tectonics lithosphere and asthenosphere rocks and rock cycle rocks and rock types

  1. Composite volcanoes

  2. Dormant volcanoes

  3. Extinct volcanoes

  4. Extrusive volcanoes

Show answer
Correct Option: B