What causes the decomposition of organic matter?

Correct option is A

The correct answer is (a) Bacteria.
· Bacteria play a crucial role in the decomposition of organic matter. They break down complex organic materials into simpler substances, which are then recycled back into the ecosystem. This process is essential for nutrient cycling and the maintenance of soil fertility.
Information Booster:
· Bacteria: They are the primary decomposers of dead plants and animals, releasing nutrients such as nitrogen, phosphorus, and carbon back into the soil.
Other Options:
· Liverwort: A type of non-vascular plant, not involved in decomposition.
· Algae: Primarily photosynthetic organisms, not decomposers.
· Virus: Infectious agents that cannot decompose organic matter.