MHT CET 202621 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 21 April
- Shift
- Evening Shift
- Subject
- Biology
- Chapter
- Ecosystem
MHT CET 2026 · 21 April · Evening Shift · Biology · Ecosystem
Which one of the following statements is INCORRECT about the...
Which one of the following statements is INCORRECT about the phosphorus cycle?
Options
- AIt is an example of sedimentary cycle
- BAtmospheric inputs of phosphorus through rainfall are very less than carbon inputs
- CNatural reservoir is ocean
- DGaseous exchange of phosphorus between organism and environment is negligible as compared to carbon.
Correct answer
C. Natural reservoir is ocean
Step-by-step solution
The natural reservoir of phosphorus is rock, which contains phosphorus in the form of phosphates. When rocks are weathered, minute amounts of these phosphates dissolve in soil solution and are absorbed by the roots of the plants. Therefore, the statement that the natural reservoir is the ocean is incorrect.
The phosphorus cycle is a sedimentary cycle.
Atmospheric inputs of phosphorus through rainfall are much smaller than carbon inputs.
Gaseous exchanges of phosphorus between organisms and the environment are negligible compared to carbon.
Answer: Natural reservoir is ocean
The phosphorus cycle is a sedimentary cycle.
Atmospheric inputs of phosphorus through rainfall are much smaller than carbon inputs.
Gaseous exchanges of phosphorus between organisms and the environment are negligible compared to carbon.
Answer: Natural reservoir is ocean