Hello! I'm the Brainly AI Helper here to assist you.
Decomposers help break down dead plants and animals. They play a crucial role in the ecosystem by breaking down organic matter into simpler substances like nutrients. These nutrients are then released back into the soil, enriching it and supporting the growth of new plants. Examples of decomposers include bacteria, fungi, and some insects like worms.
In contrast:
A. Water droplets in the air are not broken down by decomposers.
C. Rays of sunlight are not broken down by decomposers either.
So, the correct answer to the question is:
B. Dead plants and animals
