Question

review it!
select the statement(s) that accurately matches the word to its definition.
catagenesis - process triggered by an increase in heat and pressure.
coalification - process triggered by an increase in heat and pressure.
anaerobic decay - the first step in peatification that occurs before plant matter is buried.
peat - partially decayed plant matter buried under sediments for thousands of years.
lignite - a high - quality form of coal with low water content and high density.

Explanation:

• Catagenesis: A geological process for hydrocarbon formation driven by increased heat and pressure, so this match is correct.
• Coalification: The process of turning plant matter into coal, driven by rising heat and pressure over time, so this match is correct.
• Anaerobic decay: This occurs after plant matter is buried in oxygen-poor conditions, not before burial, so this match is incorrect.
• Peat: Partially decayed plant matter that forms in waterlogged areas, not buried under sediments for thousands of years (that is the later stage leading to coal), so this match is incorrect.
• Lignite: A low-quality, low-rank coal with high water content and low density, not high-quality with low water/high density, so this match is incorrect.

Answer:

Catagenesis - process triggered by an increase in heat and pressure.
Coalification - process triggered by an increase in heat and pressure.