MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How much is the productivity of landmass? |
| A. | 115 billion tons |
| B. | 170 billion tons |
| C. | 55 million tons |
| D. | 170 million tons |
| Answer» B. 170 billion tons | |
| 2. |
How much is the productivity of oceans? |
| A. | 10 billion tons |
| B. | 170 billion tons |
| C. | 55 billion tons |
| D. | 2 million tons |
| Answer» D. 2 million tons | |
| 3. |
How much of Earth s surface is occupied by oceans? |
| A. | 90% |
| B. | 1% |
| C. | 65% |
| D. | 70% |
| Answer» E. | |
| 4. |
What is the approximate amount of the annual net primary productivity of the whole biosphere? |
| A. | 80 million tons of organic matter |
| B. | 170 billion tons of organic matter |
| C. | 10 billion tons of organic matter |
| D. | 2 million tons of organic matter |
| Answer» C. 10 billion tons of organic matter | |
| 5. |
On whom does the primary productivity depend on? |
| A. | Plants |
| B. | Animals |
| C. | Sunlight |
| D. | Wing |
| Answer» B. Animals | |
| 6. |
Which of the following is estimated in either the photosynthetic number or chlorophyll content? |
| A. | Gross primary productivity |
| B. | Net primary productivity |
| C. | Primary productivity |
| D. | Net productivity |
| Answer» C. Primary productivity | |