Organisms And Population Question 219
Question: Which of the following contribute to the carbon cycle
Options:
A) Photosynthesis
B) Respiration
C) Fossil fuel combustion
D) All above
Show Answer
Answer:
Correct Answer: D
Solution:
Carbon enters the biotic system through photosynthesis.
In photosynthesis green plants utilize $ CO_2 $ and incorporate the carbon of $ CO_2 $ in Glucose.
In respiration, burning of biomass and fossil fuels release a lot of $ CO_2 $ .
Burning of fossil fuels adds $ 6\times 10^{12}kg $ of carbon into atmosphere.
BETA
