Sedimentary Rocks Questions

Different types of rocks are seen in the environment. Rocks are primarily classified into sedimentary rocks, igneous rocks, and metamorphic rocks.

Igneous rocks are created when the magma or lava in the Earth’s crust cools on the ground surface or the seabed. Metamorphic rocks are formed when the existing rock is transformed into new types of rock through a process known as metamorphism. Sedimentary rocks are formed by the lithification of sediments or diagenesis where the turn is created by transport, deposition and weathering processes.

The process of collecting mineral or organic particles to settle in place is known as sedimentation. Sedimentation takes place as dissolved minerals precipitate from water. Sedimentary rocks are the types of rock formed by deposition or accumulation of particles. Sedimentary rocks are particles that form sedimentary rock. Sedimentary rocks are minerals (geological detritus) or biological detritus). These geological detritus result from erosion of existing rocks, weathering or solidifying of molten lava blobs erupted by volcanoes.

Sedimentary rocks are deposited in layers, forming a structure called bedding. Sedimentary rocks are deposited in huge structures known as sedimentary basins. Examples of sedimentary rocks are limestone, chalk, clay, sandstone, and shale. Sedimentary rocks are also found on the planet Mars.

Read more: Types of rocks

Important Sedimentary Rocks Questions with Answers

1. Which of the following sedimentary rocks is used in the manufacturing of cement?

1. Coal
2. Dolomites
3. Limestones
4. Quartz

Answer: c) Limestones

Explanation: Limestones are used in the manufacturing of cement.

2. Which among the following is NOT a sedimentary rock?

1. Limestones
2. Quartz
3. Iron ores
4. Slate

Answer: d) Slate

Explanation: Slate is the form of metamorphic rock, and hence it is not classified under a sedimentary rock.

3. Rock gypsum is used in the making of ______

1. Cement
2. Steel
3. Plaster
4. Option a and c

Answer: d) Options a and c

4. Chalk is a type of _____

1. Coal
2. Dolomites
3. Limestones
4. Quartz

Answer: c) Limestones

Explanation: Chalk is a type of limestone.

5. Which of the following is a sedimentary rock?

1. Granite
2. Schist
3. Quartzite
4. Sandstone

Answer: d) Sandstone

Explanation: Sandstone is a type of clastic sedimentary rock.

6. Which of the following is responsible for creating sedimentary rocks?

1. Erosion
2. Weathering and lithification
3. Precipitation
4. All the above options

Answer: d) All the above options.

Explanation: Erosion, weathering and lithification, and precipitation are some of the parameters responsible for the formation of sedimentary rocks.

7. How are chemical sedimentary rocks formed?

Chemical sedimentary rocks are formed when dissolved materials precipitate from the solution. Example: limestones, rock salt, and iron ore.

8. State true or false: Natural gas, oil, coal, uranium, and other energy resources are formed from sedimentary rocks.

1. TRUE
2. FALSE

Answer: a) TRUE

Explanation: Natural gas, oil, coal, and uranium are formed from sedimentary rocks.

9. Choose YES or NO: Is halite a sedimentary rock?

1. YES
2. NO

Answer: a) YES

Explanation: Halite is a sedimentary rock.

10. Give three examples of clastic sedimentary rocks.

Three examples of clastic sedimentary rocks are shale, sandstone, and siltstone.

Practice Questions

1. How are rocks classified?
2. What is meant by sedimentation?
3. What is a sedimentary rock?
4. How are sedimentary rocks formed?
5. Apart from the Earth, on which planet are sedimentary rocks seen?

Watch the video below to learn about sedimentary, igneous and metamorphic rocks.