Tag: introduction to rocks, volcanoes and earthquakes

Questions Related to introduction to rocks, volcanoes and earthquakes

When the lava inside the Earth solidifies, it results in the formation of _______________.

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

  1. sedimentary rocks

  2. plutonic rocks

  3. volcanic rocks

  4. metamorphic rocks

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Correct Option: B
Explanation:
  • When the lava solidifies before reaching the surface, it gives rise to the rocks called plutonic rocks.
  • Volcanic rocks are formed when lava solidifies on the surface of the earth.
  • Sedimentary and metamorphic rocks are not directly related to lava.
  • Hence option B is the correct answer.

Stalactities and stalagmites are most common in ___________.

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

  1. limestone areas

  2. hard rock areas

  3. snow capped areas

  4. desert areas

Show answer
Correct Option: A
Explanation:

Stalactites and stalagmites are the depositional landforms of limestone areas. The calcareous deposits from dripping of water in dry caves are called dripstones. The columns of dripstones hanging from the cave ceiling are called stalactites while the calcareous columns of dripstones growing upward from the cave floor are known as stalagmites.

Which of the following statement is not correct :

geography rocks and rock cycle lithosphere and asthenosphere rocks and rock types 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 rock are distinguished from other types of rocks by the presence of distinct layers

  3. Granite has large cyrstals 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: B

Which of the following is called 'Primary rocks'?

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

  1. Metamorphic rocks

  2. Sedimentary rocks

  3. Igneous rocks

  4. Stratified rocks

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Correct Option: C
Explanation:

Igneous rocks begin the rock cycle, and are therefore called primary rocks. Two major divisions include- volcanic or extrusive rocks that form when magma is ejected from the Earth's crust, and intrusive rocks, which are created below the surface.

Marble is a metamorphic rock. It is formed by the alteration of _________.

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

  1. granite

  2. coal

  3. graphite

  4. limestone

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Correct Option: D

The precious stones line sapphire, ruby, emerald and diamonds are found in ______________ rocks.

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

  1. chemical sedimentary rocks

  2. metamorphic rocks

  3. igneous rocks

  4. none of these


Show answer
Correct Option: B

Which one of the landforms is caused by the winds?

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

  1. Sinkholes

  2. Mushroom rock

  3. Lapies

  4. Headland

Show answer
Correct Option: B
Explanation:

The rocks having a broad upper part and narrow base resembling an umbrella or mushroom are called mushroom rocks. Mushroom rocks are curved by the erosional work of winds. 

Granite is found in ______________.

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

  1. Igneous rocks

  2. Sedimentary rocks

  3. Metamorphic rocks

  4. Aqueous rocks

Show answer
Correct Option: A
Explanation:
  • Granite rock is formed from the cooling of lava so it is found as an igneous rock. Hence option A is correct.
  • Rest options are of different category of rocks.

Quartzite is an example of _________.

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

  1. igneous rock

  2. sedimentary rocks

  3. metamorphic rocks

  4. none of these

Show answer
Correct Option: C
Explanation:

Quartzite is a metamorphic rock that is formed by interlocking quartz grains from quartz sandstone. The rock is hard rock, nonfoliated.

Name the rock which is used for making jewellery.

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

  1. Shale

  2. Pumice

  3. Obsidian

  4. Granite

Show answer
Correct Option: D
Explanation:

Granite is a light-colored igneous rock. It is composed mainly of quartz and feldspar with a little amount of mica, amphiboles and other minerals. Granite is the world's toughest substance and is used in jewelry making. As few granites are rare and extremely beautiful. They are used as gemstones. Example of granite- blue tint found in the Himalayas etc.