Question

which of the following accurately represents the processes that solidify sedimentary rock?
○ compaction and cementation
○ combustion and solidification
○ combination and pressure
○ convection and conduction

Explanation:

To determine the correct processes for solidifying sedimentary rock, we analyze each option:

• "Compaction and cementation": Compaction reduces pore space in sediments, and cementation binds sediment grains, which are the key processes forming sedimentary rock from sediments.
• "Combustion and solidification": Combustion is burning (not related to sedimentary rock formation), and solidification is for magma/lava (igneous rock), so incorrect.
• "Combination and pressure": "Combination" is too vague, and while pressure is part of compaction, this term is not accurate for the process.
• "Convection and conduction": These are heat transfer processes (not related to sedimentary rock solidification).

So the correct option is the one with compaction and cementation.

Answer:

A. compaction and cementation