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 common type of rock?

  1. Igneous

  2. Metamorphic

  3. Sedimentary

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

Igneous, metamorphic, and sedimentary are the three main types of rocks that occur naturally on Earth. Artificial rocks are not naturally occurring and are typically created by humans for specific purposes.

Multiple choice

What is the primary mineral component of granite?

  1. Quartz

  2. Feldspar

  3. Mica

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

Granite is an igneous rock that is composed primarily of quartz, feldspar, and mica. Quartz is the most abundant mineral in granite, typically making up more than 50% of the rock's volume.

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 rocks are formed from the cooling and solidification of molten rock. Sedimentary rocks are formed from the accumulation and compaction of sediment.

Multiple choice

Which of the following is NOT a type of metamorphic rock?

  1. Slate

  2. Marble

  3. Gneiss

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

Granite is an igneous rock, not a metamorphic rock. Metamorphic rocks are formed when existing rocks are subjected to extreme conditions that cause them to change their mineral composition and texture.

Multiple choice

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

  1. Caves

  2. Sinkholes

  3. Stalactites

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

Sand dunes are not karst features. They are formed by the action of wind, not groundwater.

Multiple choice

Which lake is a crater lake formed by a meteorite impact?

  1. Lonar Lake

  2. Sambhar Lake

  3. Pulicat Lake

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

Lonar Lake is a crater lake formed by a meteorite impact. It is located in the Buldhana district of Maharashtra.

Multiple choice

What is the traditional birthstone for the month of September?

  1. Sapphire

  2. Amethyst

  3. Peridot

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

Sapphire is the traditional birthstone for the month of September.

Multiple choice

Which of these is a type of cave system formed by the dissolution of soluble rock, such as limestone or dolomite?

  1. Delta

  2. Canyon

  3. Karst

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

Karst is a type of cave system formed by the dissolution of soluble rock, such as limestone or dolomite, by water over a long period of time.

Multiple choice

The Aravalli Range is primarily composed of which type of rocks?

  1. Gneiss and Schist

  2. Sandstone and Limestone

  3. Granite and Basalt

  4. Laterite and Alluvium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Aravalli Range is composed primarily of gneiss and schist, which are metamorphic rocks formed from the transformation of pre-existing rocks under high temperature and pressure.

Multiple choice

The Deccan Plateau is primarily composed of which type of rocks?

  1. Basalt and Lava

  2. Sandstone and Shale

  3. Limestone and Dolomite

  4. Granite and Gneiss
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Deccan Plateau is composed primarily of basalt and lava, which were formed by volcanic eruptions during the Cretaceous period.

Multiple choice

The Himalayan Mountains are primarily composed of which type of rocks?

  1. Sedimentary Rocks

  2. Metamorphic Rocks

  3. Igneous Rocks

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

The Himalayan Mountains are composed of a variety of rock types, including sedimentary rocks, metamorphic rocks, and igneous rocks.

Multiple choice

The Thar Desert is primarily composed of which type of rocks?

  1. Sandstone and Limestone

  2. Granite and Gneiss

  3. Basalt and Lava

  4. Laterite and Alluvium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Thar Desert is composed primarily of sandstone and limestone, which were deposited by ancient rivers and seas.

Multiple choice

The Konkan Coast is primarily composed of which type of rocks?

  1. Basalt and Lava

  2. Sandstone and Limestone

  3. Granite and Gneiss

  4. Laterite and Alluvium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Konkan Coast is composed primarily of basalt and lava, which were formed by volcanic eruptions during the Cretaceous period.

Multiple choice

The Chhotanagpur Plateau is primarily composed of which type of rocks?

  1. Gneiss and Schist

  2. Sandstone and Limestone

  3. Granite and Basalt

  4. Laterite and Alluvium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Chhotanagpur Plateau is composed primarily of gneiss and schist, which are metamorphic rocks formed from the transformation of pre-existing rocks under high temperature and pressure.

Multiple choice

What is the composition of cometary dust?

  1. Ice

  2. Rock

  3. Metal

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

Cometary dust is composed of a mixture of ice, rock, and metal.