An increase in carbon dioxide content in the atmosphere would not cause
(a) more heat to be retained by the environment
(b) increase in photosynthesis in plants
(c) global warming
(d) abundance of desert plants
Answer: D
Solution.
is a greenhouse gas; thus, its increase will trap more heat and will cause global warming.
Also increased will increase the rate of photosynthesis however, increase doesn't contribute towards deserted conditions
An increase in carbon dioxide content in the atmosphere would not cause abundance of desert plants as when the temperature rises (due to excessive carbon dioxide emission) their ability to take up carbon dioxide reduces.
Hence, the correct option of this question is option D