Which type of rock is formed when small particles press and cement together, often forming layers? A. igneous B. metamorphic C. sedimentary
C. sedimentary
The type of rock that is formed when small particles press and cement together, often forming layers, is known as sedimentary rock. To arrive at this answer, you can examine the characteristics of each rock type and determine which one meets the given criteria.
1. Igneous rock is formed from the solidification of molten material, such as lava or magma. It is typically formed from the cooling of molten rock and does not involve the process of particles pressing and cementing together.
2. Metamorphic rock is formed when existing rocks undergo intense heat and pressure, causing their mineral composition and structure to change. While metamorphic rock involves pressure, it does not involve the process of small particles pressing and cementing together.
3. Sedimentary rock is formed when sediments, which are small particles like sand, silt, and clay, accumulate and are then compacted and cemented together over time. This process often results in the formation of distinct layers within the rock.
Based on this information, the correct answer is C. sedimentary rock.