Geography ยท Science General

Rocks and Earth Materials

1,291 Questions

Study geographical questions centered around rocks, minerals, and earth materials. The focus is on the formation and identification of igneous, sedimentary, and metamorphic rocks. These earth science topics are commonly tested in civil services and state level examinations.

Igneous rocksSedimentary rocksMetamorphic processEarth materialsGeomorphic symbols

Rocks and Earth Materials Questions

Multiple choice

Which type of rock is formed from the compaction and cementation of sediments?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Hydrothermal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sedimentary rocks are formed from the compaction and cementation of sediments, such as sand, mud, and organic matter.

Multiple choice

What is the term for a rock that is composed of large, interlocking crystals?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Phaneritic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Phaneritic rocks are characterized by large, interlocking crystals that are visible to the naked eye.

Multiple choice

Which rock type is formed from the cooling and solidification of magma beneath the Earth's surface?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Hydrothermal
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Igneous rocks are formed from the cooling and solidification of magma or lava, whether it occurs above or below the Earth's surface.

Multiple choice

What is the term for a rock that is composed of small, interlocking crystals?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Aphanitic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Aphanitic rocks are characterized by small, interlocking crystals that are not visible to the naked eye.

Multiple choice

Which rock type is formed from the accumulation and compaction of organic matter?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Hydrothermal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sedimentary rocks can be formed from the accumulation and compaction of organic matter, such as plant and animal remains.

Multiple choice

What is the term for a rock that is formed from the cooling and solidification of lava on the Earth's surface?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Extrusive
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Extrusive rocks are formed from the cooling and solidification of lava on the Earth's surface.

Multiple choice

Which type of meteor is the most common?

  1. Fireballs

  2. Bolides

  3. Micrometeorites

  4. Stony Meteorites
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Micrometeorites are the most common type of meteor, making up about 99% of all meteors that enter Earth's atmosphere. They are tiny particles of dust and rock, typically ranging in size from a few micrometers to a few millimeters.

Multiple choice

Which type of meteor is the largest and can cause significant damage when it impacts Earth?

  1. Fireballs

  2. Bolides

  3. Micrometeorites

  4. Stony Meteorites
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bolides are the largest type of meteor and can cause significant damage when they impact Earth. They are typically several kilometers in size and can produce a bright flash and a loud boom as they enter the atmosphere.

Multiple choice

Which type of meteor is composed primarily of rock and metal?

  1. Fireballs

  2. Bolides

  3. Stony Meteorites

  4. Iron Meteorites
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Stony meteorites are composed primarily of rock and metal. They are the most common type of meteorite found on Earth and are typically composed of silicate minerals such as olivine, pyroxene, and feldspar.

Multiple choice

Which type of meteor is composed primarily of iron and nickel?

  1. Fireballs

  2. Bolides

  3. Stony Meteorites

  4. Iron Meteorites
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Iron meteorites are composed primarily of iron and nickel. They are less common than stony meteorites and are often found in association with stony meteorites.

Multiple choice

Which type of volcano is characterized by a steep, conical shape and frequent, explosive eruptions?

  1. Shield volcano

  2. Cinder cone volcano

  3. Composite volcano

  4. Caldera volcano
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cinder cone volcanoes are known for their steep slopes and frequent eruptions of cinders and ash.

Multiple choice

What is the term used to describe the molten rock that flows out of a volcano during an eruption?

  1. Lava

  2. Magma

  3. Ash

  4. Tephra
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lava is the molten rock that flows out of a volcano during an eruption.

Multiple choice

Which type of volcanic eruption is characterized by the emission of large volumes of ash and gas, often leading to pyroclastic flows?

  1. Hawaiian eruption

  2. Strombolian eruption

  3. Vulcanian eruption

  4. Pelean eruption
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pelean eruptions are known for their explosive nature and the emission of large volumes of ash and gas.

Multiple choice

Which type of volcanic eruption is characterized by the emission of relatively low-viscosity lava that flows easily?

  1. Hawaiian eruption

  2. Strombolian eruption

  3. Vulcanian eruption

  4. Pelean eruption
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hawaiian eruptions are characterized by the emission of low-viscosity lava that flows easily.

Multiple choice

Which type of volcanic eruption is characterized by the emission of viscous lava that forms a dome-shaped structure?

  1. Hawaiian eruption

  2. Strombolian eruption

  3. Vulcanian eruption

  4. Pelean eruption
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pelean eruptions are characterized by the emission of viscous lava that forms a dome-shaped structure.