Question

both whales and dolphins breathe air. identify subject​

Answer 1

Answer:

Whales and dolphins are mammals and breathe air into their lungs, just like we do. They cannot breathe underwater like fish can as they do not have gills. They breathe through nostrils, called a blowhole, located right on top of their heads.

Explanation:

Answer 2

Subject - Both whales and dolphins

Predicate - breathe air.