question_answer

If atmospheric carbon dioxide was eliminated from our atmosphere, we would expect that:

1. the Earth would cool considerably

2. photosynthesis would dramatically increase

3. the Earth would heat up considerably

4. photosynthesis would dramatically decrease

Which of the above is/are correct?

A)  1 and 2           

B)  2 and 3

C)  1 and 4           

D)  2 and 4