MHT CET 202622 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 22 April
- Shift
- Evening Shift
- Subject
- Biology
- Chapter
- Ecosystem
MHT CET 2026 · 22 April · Evening Shift · Biology · Ecosystem
The annual net primary productivity of the whole biosphere is...
The annual net primary productivity of the whole biosphere is approximately billion tonnes. Of this, the productivity of all land-based ecosystems is about ____ billion tonnes.
Options
- A
- B
- C
- D
Correct answer
A.
Step-by-step solution
The annual net primary productivity of the whole biosphere is approximately billion tonnes (dry weight) of organic matter.
Despite occupying about percent of the Earth's surface, the productivity of the oceans is only billion tonnes.
The productivity of all land-based ecosystems is the remaining amount.
Productivity of land-based ecosystems = billion tonnes.
Answer:
Despite occupying about percent of the Earth's surface, the productivity of the oceans is only billion tonnes.
The productivity of all land-based ecosystems is the remaining amount.
Productivity of land-based ecosystems = billion tonnes.
Answer: