You can do animals that have 4 legs (dogs, horses), animals that fly (parrot, eagle), animals that live in the water (goldfish,bass)
Free fall means rapid fall or a downward motion due to gravity. Sentence example: When Joe was accidentally bumped by Sarah, he was sent towards a free fall down the escalator, leading to a serious injury on his arm and two legs.
Answer:
the first one, plants release oxygen gas into the air.
Explanation:
the biosphere consists of plants and plants take c02 and convert it into oxygen. the oxygen then goes to the atmosphere