Use the paragraph to answer the question.

Question

About 1.5 million species of fungi exist on Earth. They act as nature’s
decomposers. These organisms break down matter
and release enzymes and acids that unlock nutrients for plants and
soil organisms. You may be familiar with macrofungi, a type of
fungus that includes mushrooms. But for the most part, fungi exist as
mycelia, tiny threads that snake underground in billions of
interconnected threads. They twist and twine with tree root systems,
helping tress obtain crucial nutrients. Mycologists call these networks
of mycelia "Earth’s nervous system."
Which statement best identifies the central idea of the paragraph?
(1 point)
The type of fungus called macrofungi includes mushrooms.
Fungi exist as a web of threads connected underground.
Fungi bring nutrients to tree root systems when they twine with
them underground.
Earth's many species of fungi act as decomposers of matter.

Answer 1

The statement that best identifies the central idea of the paragraph is: Earth's many species of fungi act as decomposers of matter.