Answer:
Carbon dioxide
Explanation:
The alveoli picks up the oxygen you breathe in and releases the outgoing waste product carbon dioxide
B, is the answer. I believe.
Because ocean acidification could affect the marine species negatively therefore altering marine life and biodiversity it affects humans as well, many people from all over the world depend on food that comes from the ocean we need these food for protein.
Answer:
A
Explanation:
He discovered them in 1868. I hope this helps:)
