Which of the following statements best describes “carbon fertilization” ?
Show answer
Answer: A. Carbon fertilisation is the increase in plant growth (photosynthesis) caused by higher carbon dioxide in the air. So option A.
Watch for: All options describe effects of more CO2, so students must match the exact term.
Why the other options are wrong
- B. Wrong because rising temperature is the greenhouse effect.
- C. Wrong because increasing ocean acidity is ocean acidification.
- D. Wrong because it is not about all living beings adapting.
Source to check: IPCC Fifth Assessment Report (2014), Working Group II, Glossary ('CO2 fertilisation')
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.