Which statement about life on earth is true

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

Explain the causes and effect of damage to the genetic code.

5. what might happen if you were to remove all light from the setup after the discs have all become buoyant? describe what you would see. explain why this would occur with relation to cellular processes like respiration. [referring to an ap biology lab in which spinach discs are placed in a sodium bicarbonate solution and exposed to light.]