Atmospheric levels of carbon dioxide have rapidly increased since the industrial revolution. One effect of increased atmospheric COâ‚‚ is global warming. What effect does increased COâ‚‚ have on plants?
1) Increased COâ‚‚ enhances photosynthesis in plants.
2) Increased COâ‚‚ inhibits photosynthesis in plants.
3) Increased COâ‚‚ has no effect on photosynthesis in plants.
4) Increased COâ‚‚ leads to the death of plants.
