Tag: geography

Questions Related to geography

Identify the following igneous rock. It has fine grain size and is extrusive.

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

  1. Granite

  2. Pumice

  3. Both a and b

  4. None of the above

Show answer
Correct Option: D
Explanation:

None of the above


Extrusive igneous rocks erupt onto the surface, where they cool quickly to form small crystals. Some cool so quickly that they form an amorphous glass. These rocks include andesite, basalt, obsidian, pumice, rhyolite, scoria, and tuff.

Andesite is a fine-grained, extrusive igneous rock composed mainly of plagioclase with other minerals such as hornblende, pyroxene, and biotite.

Rocks like sandstone which allow water to seep through readily are called ______________.

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

  1. Permeable rocks

  2. Sedimentary rocks

  3. Metamorphic rocks

  4. Mushroom rocks

Show answer
Correct Option: A
Explanation:
  • Permeable rocks are the rocks having interconnected pores which allow the water to seep through them. Hence option A is correct.
  • Sedimentary rocks and metamorphic rocks are a  broad classification of rocks.
  • Mushroom rocks derive their name out of their shape.

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

Show answer
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

Show answer
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


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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.