I'll give 20 points to whoever me!
so i have to make 2 paragraphs. 1 for why the plants floated with carbon dioxide to float, and the 2nd one for why the plants didn't float without carbon dioxide. it doesn't have to be long. also would a great deal if you listed sources.

Plants can not survive without carbon dioxide. They use them to create a food supply, energy, and oxygen for cellular respiration.

there really is life in the deepest part

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.