Geography ยท Science General

Rocks and Earth Materials

1,176 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

What is the term used to describe the way a mineral breaks when it is not along a cleavage plane?

  1. Cleavage

  2. Fracture

  3. Luster

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

Fracture refers to the way a mineral breaks when it is not along a cleavage plane, and can be described as conchoidal, uneven, or splintery.

Multiple choice

What is the term used to describe the specific gravity of a mineral?

  1. Cleavage

  2. Fracture

  3. Luster

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

Specific gravity refers to the ratio of the density of a mineral to the density of water, and is used to identify and classify minerals.

Multiple choice

Which of the following is a common geological indicator of mineralization?

  1. Hydrothermal alteration

  2. Vein formation

  3. Metamorphism

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

Hydrothermal alteration is the alteration of rocks and minerals by hot, mineral-rich fluids. Vein formation is the filling of fractures with minerals. Metamorphism is the transformation of rocks under the influence of heat, pressure, and chemical reactions. All of these processes can be associated with the formation of mineral deposits.

Multiple choice

Which of the following is a characteristic feature of Gondwana rocks?

  1. Folded mountain ranges

  2. Extensive coal deposits

  3. Abundant volcanic rocks

  4. Large-scale glaciations
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gondwana rocks are known for their extensive coal deposits, formed from the accumulation of plant matter in ancient swamps.

Multiple choice

Which of the following is an example of a river or stream that flows underground through soluble rock, such as limestone or gypsum?

  1. Mississippi River

  2. Nile River

  3. Amazon River

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

A karst river is a type of river or stream that flows underground through soluble rock, such as limestone or gypsum, creating unique cave systems and underground channels.

Multiple choice

What is the material of the Rosetta Stone?

  1. Granite

  2. Limestone

  3. Sandstone

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

The Rosetta Stone is made of basalt, a dark, volcanic rock.

Multiple choice

Which of the following is NOT a type of karst landform?

  1. Sinkhole

  2. Cave

  3. Stalactite

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

Dunes are not karst landforms. They are aeolian landforms, which are formed by the wind.

Multiple choice

Which of the following is NOT a type of volcanic landform?

  1. Lava flow

  2. Ash cone

  3. Cinder cone

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

Dunes are not volcanic landforms. They are aeolian landforms, which are formed by the wind.

Multiple choice

Which of the following is NOT a common type of sediment found in river deposits?

  1. Sand

  2. Gravel

  3. Mud

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

Coal is not a common type of sediment found in river deposits.

Multiple choice

Which mineral is commonly used in the production of cement?

  1. Limestone

  2. Granite

  3. Basalt

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

Limestone, composed primarily of calcium carbonate, is a key ingredient in the production of cement.

Multiple choice

Which geologic structure is characterized by a single, inclined layer of rock?

  1. Syncline

  2. Anticline

  3. Monocline

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

A monocline is a single, inclined layer of rock, often formed by tectonic forces or the weight of overlying sediments.

Multiple choice

Which geologic structure is characterized by a large, volcanic depression formed by the collapse of a volcano?

  1. Crater

  2. Basin

  3. Caldera

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

A caldera is a large, volcanic depression formed by the collapse of a volcano.

Multiple choice

Which geologic structure is characterized by a tall, isolated pillar of rock formed by erosion?

  1. Natural Bridge

  2. Sea Arch

  3. Stack

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

A stack is a tall, isolated pillar of rock formed by erosion.

Multiple choice

What is the term for a large, natural cave formed by the dissolution of soluble rock?

  1. Natural Bridge

  2. Sea Arch

  3. Stack

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

A cave is a large, natural cave formed by the dissolution of soluble rock.

Multiple choice

What is the most abundant mineral in the Earth's crust?

  1. Quartz

  2. Feldspar

  3. Mica

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

Feldspar is a group of minerals that make up about 60% of the Earth's crust.