Question

what type of rock is formed by the deposit of sediments compacted together?
a sedimentary
b metamorphic
c igneous

Explanation:

To determine the correct answer, we analyze the formation of each rock type:

• Sedimentary rocks are formed from the deposition, compaction, and cementation of sediments (like sand, mud, or organic material) over time.
• Metamorphic rocks form from existing rocks (sedimentary, igneous, or other metamorphic rocks) that undergo changes due to heat, pressure, or chemical processes, without melting.
• Igneous rocks form from the cooling and solidification of magma (molten rock) or lava.

Since the question asks about rocks formed by the deposit of sediments compacted together, the correct type is sedimentary.

Answer:

a. sedimentary