Which of the following is not a possible effect of rising carbon dioxide levels on plants? a. increased photosynthesis b. increased plant mortality c. increased crop productivity d. increased plant growth

The correct answer is:

b. increased plant mortality.

i know this answer is correct because i just took the "climate and change in ecosystems" quiz on edgenuity.

Increased plant mortality is not a possible effect of rising carbon dioxide levels on plants. the correct option is b. more than enough carbon dioxide are continuosly been released into the atmosphere as a result of burining of fossils fuels. this excessive carbon dioxide has some negative effects on plants, but these does not include inreased mortality of plants.