The carbon and nitrogen cycles both play an important role in food production - VCE - SSCE Chemistry - Question 20 - 2003 - Paper 1
Question 20
The carbon and nitrogen cycles both play an important role in food production.
Which of the following processes is part of both the nitrogen and carbon cycles?
A. an... show full transcript
Worked Solution & Example Answer:The carbon and nitrogen cycles both play an important role in food production - VCE - SSCE Chemistry - Question 20 - 2003 - Paper 1
Step 1
A. animal respiration
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Animal respiration involves the process where animals take in oxygen and release carbon dioxide. This process is part of the carbon cycle as it contributes to the exchange of gases. However, it does not directly relate to the nitrogen cycle.
Step 2
B. denitrification in soil
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Denitrification in soil is a process that converts nitrates into nitrogen gas, removing nitrogen from the ecosystem. While it plays a crucial role in the nitrogen cycle, it is not a part of the carbon cycle.
Step 3
C. plant photosynthesis
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Plant photosynthesis is the process where plants convert carbon dioxide into organic compounds using sunlight. This is essential for the carbon cycle but does not directly involve the nitrogen cycle.
Step 4
D. breakdown of urea fertiliser in soil
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The breakdown of urea fertilizer in soil involves microbial activity that converts urea into ammonia, and eventually into nitrates. This process is connected to both the nitrogen cycle (through nitrogen transformation) and indirectly supports the carbon cycle by enhancing soil nutrient availability for plants.
