MP Board · Class 12 · Biology · EcosystemWhat is the estimated total annual net primary productivity (dry weight) of the entire biosphere?
Step-by-Step Solution
The annual net primary productivity of the whole biosphere is approximately 170 billion tons (dry weight) of organic matter. Despite occupying about 70% of the surface, oceans contribute only 55 billion tons.
Detailed Options Breakdown
Option : 170 billion tons (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: 55 billion tons
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Ecosystem.
Option 2: 250 billion tons
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Ecosystem.
Option 3: 100 billion tons
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Ecosystem.
💡 Study Guide: This question tests core syllabus concepts from Ecosystem. For formulas, key summaries, and mock exam reference guides, read the full Ecosystem Revision Notes.