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 geologic feature is formed by the eruption of lava from a volcano?

  1. Lava dome

  2. Lava flow

  3. Pyroclastic flow

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

A lava dome is a geologic feature formed by the eruption of lava from a volcano.

Multiple choice

Which of the following is an example of a gemstone?

  1. Ruby

  2. Emerald

  3. Sapphire

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

Ruby is an example of a gemstone, which is a mineral that is used in jewelry.

Multiple choice

Which type of sediment is formed from extraterrestrial material, such as micrometeorites and cosmic dust?

  1. Terrigenous sediment

  2. Biogenic sediment

  3. Hydrogenous sediment

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

Cosmogenic sediments are formed from extraterrestrial material, such as micrometeorites and cosmic dust, that enter the Earth's atmosphere and eventually settle on the ocean floor.

Multiple choice

Which of the following is NOT a major type of island formation?

  1. Continental Islands

  2. Volcanic Islands

  3. Barrier Islands

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

Barrier islands are formed by the accumulation of sand and sediment along coastlines, while continental, volcanic, and atolls are all formed through geological processes.

Multiple choice

What is the primary building block of coral reefs?

  1. Coral Polyps

  2. Calcium Carbonate

  3. Seaweed

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

Coral reefs are formed by the accumulation of calcium carbonate skeletons produced by tiny marine organisms called coral polyps.

Multiple choice

Which of the following is NOT a type of riverbed material?

  1. Gravel

  2. Sand

  3. Mud

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

Bedrock is not a type of riverbed material. It refers to the solid rock underlying the riverbed.

Multiple choice

What is the process by which mountains are formed through the accumulation of volcanic material?

  1. Folding

  2. Faulting

  3. Volcanism

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

Volcanic mountains are formed when magma or lava from the Earth's interior erupts onto the surface, building up layers of volcanic material and creating cone-shaped mountains.

Multiple choice

What are meteors?

  1. Small pieces of rock or metal that enter the Earth's atmosphere

  2. Large, gaseous planets that orbit the Sun

  3. Small, icy objects that orbit the Sun

  4. Large, rocky objects that orbit the Sun
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Meteors are small pieces of rock or metal that enter the Earth's atmosphere. They are typically caused by the breakup of asteroids or comets.

Multiple choice

Which technology is commonly used for removing rock matrix from fossils?

  1. Air Abrasion

  2. Acid Etching

  3. Laser Ablation

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Air abrasion, acid etching, and laser ablation are all commonly used technologies for removing rock matrix from fossils.

Multiple choice

What is the most common type of geothermal reservoir?

  1. Hydrothermal reservoir

  2. Magma reservoir

  3. Dry steam reservoir

  4. Hot water reservoir
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydrothermal reservoirs are the most common type of geothermal reservoir, containing hot water and steam heated by the Earth's core.

Multiple choice

Which mineral is commonly used in the construction of roads and highways?

  1. Sand

  2. Gravel

  3. Limestone

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

Gravel is commonly used in the construction of roads and highways. It consists of small, loose stones and is often mixed with sand and other materials to create a stable and durable road surface.

Multiple choice

What is the term used to describe the chemical reactions that occur on the surfaces of planets and moons?

  1. Surface chemistry

  2. Geochemistry

  3. Mineralogy

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

Surface chemistry is the study of chemical reactions and processes that occur on the surfaces of planets and moons.

Multiple choice

What is the primary building block of coral reefs?

  1. Calcium Carbonate

  2. Silica

  3. Chitin

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

Coral reefs are primarily composed of calcium carbonate, secreted by tiny marine organisms called coral polyps.

Multiple choice

Which type of weathering involves the breakdown of rocks by the action of living organisms?

  1. Mechanical weathering

  2. Chemical weathering

  3. Biological weathering

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

Biological weathering is the process by which rocks are broken down by the action of living organisms, such as plants, animals, and microorganisms.

Multiple choice

Which type of weathering involves the breakdown of rocks by the action of pressure?

  1. Mechanical weathering

  2. Chemical weathering

  3. Biological weathering

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

Mechanical weathering is the process by which rocks are broken down into smaller pieces by the action of pressure, such as the weight of overlying rocks or the movement of tectonic plates.