Which of the following is a type of sedimentary rock?

Correct option is A

The correct answer is (a) Sandstone.

• Sandstone is a sedimentary rock formed by the compaction and cementation of sand-sized particles, often quartz or feldspar, over time.
• It is one of the most common types of sedimentary rock and is often used in construction and as a building material due to its durability and ease of carving.

Information about other options:

• Slate is a metamorphic rock, which forms when shale or mudstone undergoes metamorphism under heat and pressure.
• Granite is an igneous rock, formed from the slow crystallization of magma beneath the Earth’s surface.
• Lignite is a type of coal, which is a sedimentary rock made up of compressed plant material.

Information Booster:

• Igneous Rocks: Igneous rocks form out of magma and lava from the interior of the Earth. They are known as primary rocks. E.g., Granit, gabbro, pegmatite basalt.
• Metamorphic Rock: These rocks form under the action of pressure, volume and temperature changes. E.g., Gneissoid, schist, marble etc.