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 of the following is NOT a type of sedimentary rock?

  1. Sandstone

  2. Limestone

  3. Shale

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

Igneous rock is not a type of sedimentary rock. It is a type of rock that is formed from the cooling and solidification of magma or lava.

Multiple choice

Which of the following is NOT an example of biological weathering?

  1. The action of plant roots on rocks

  2. The action of burrowing animals on rocks

  3. The action of lichens on rocks

  4. The action of wind on rocks
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The action of wind on rocks is not an example of biological weathering. It is an example of physical weathering.

Multiple choice

Which of the following is NOT a type of metamorphism?

  1. Contact metamorphism

  2. Regional metamorphism

  3. Hydrothermal metamorphism

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

Mechanical metamorphism is not a type of metamorphism. It is the process by which rocks are broken down into smaller particles by physical forces, such as abrasion, impact, and freeze-thaw cycles.

Multiple choice

What is the term for the process by which rocks are melted and then cooled to form new rocks?

  1. Igneous activity

  2. Metamorphism

  3. Weathering

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

Igneous activity is the process by which rocks are melted and then cooled to form new rocks.

Multiple choice

Which geological process is responsible for the formation of hydrothermal mineral deposits?

  1. Magmatism

  2. Metamorphism

  3. Hydrothermal Alteration

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

Hydrothermal mineral deposits are formed when hot, mineral-rich fluids circulate through rocks, causing chemical reactions that result in the precipitation of valuable minerals.

Multiple choice

Which type of mineral deposit is formed by the replacement of pre-existing rocks by hydrothermal fluids?

  1. Hydrothermal Deposits

  2. Sedimentary Deposits

  3. Magmatic Deposits

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

Hydrothermal mineral deposits are formed when hot, mineral-rich fluids circulate through rocks, causing chemical reactions that result in the replacement of pre-existing rocks with valuable minerals.

Multiple choice

Which type of mineral deposit is formed by the accumulation of organic matter in sedimentary rocks?

  1. Hydrothermal Deposits

  2. Sedimentary Deposits

  3. Magmatic Deposits

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

Sedimentary mineral deposits are formed by the accumulation of organic matter in sedimentary rocks, such as coal and oil, through geological processes over millions of years.

Multiple choice

Which of the following is NOT a common rock-forming mineral?

  1. Quartz

  2. Feldspar

  3. Olivine

  4. Calcite

  5. Diamond
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Diamond is a valuable gemstone but not a common rock-forming mineral due to its rarity and specific formation conditions.

Multiple choice

Which type of rock is formed from the cooling and solidification of molten rock?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Foliated

  5. Non-foliated
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Igneous rocks are formed from the cooling and solidification of molten rock, either above or below the Earth's surface.

Multiple choice

Which type of rock is formed when existing rocks are subjected to high temperatures and pressures?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Foliated

  5. Non-foliated
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Metamorphic rocks are formed when existing rocks are subjected to high temperatures and pressures, causing changes in their mineral composition and texture.

Multiple choice

What is the term for the flat, sheet-like structure found in some metamorphic rocks?

  1. Foliation

  2. Cleavage

  3. Lamination

  4. Banding

  5. Schistosity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Foliation is the term for the flat, sheet-like structure found in some metamorphic rocks, resulting from the alignment of minerals during metamorphism.

Multiple choice

Which mineral is commonly associated with the formation of granite?

  1. Quartz

  2. Feldspar

  3. Mica

  4. Olivine

  5. Pyroxene
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Feldspar is a common mineral found in granite, along with quartz and mica, contributing to its characteristic texture and composition.

Multiple choice

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

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Coal

  5. Limestone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Coal is a sedimentary rock formed from the accumulation and compaction of organic matter, primarily plant material, over millions of years.

Multiple choice

Which mineral is commonly associated with the formation of basalt?

  1. Quartz

  2. Feldspar

  3. Mica

  4. Olivine

  5. Pyroxene
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Pyroxene is a common mineral found in basalt, along with olivine, contributing to its dark color and fine-grained texture.

Multiple choice

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

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. Sandstone

  5. Limestone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sandstone is a sedimentary rock formed from the accumulation and compaction of sand, consisting primarily of quartz grains.