Question

Bacteria add carbon to the carbon cycle by(1 point)
Responses

exchanging carbon dioxide and oxygen gases.
exchanging carbon dioxide and oxygen gases.

decomposing dead organisms.
decomposing dead organisms.

performing photosynthesis.
performing photosynthesis.

being consumed by larger organisms, such as plankton.
being consumed by larger organisms, such as plankton.

Answer 1

decomposing dead organisms.

Explanation: When bacteria decompose dead plants and animals they break down organic carbon into simpler compounds and CO2, returning carbon to the environment and keeping it moving through the carbon cycle.