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| Q.6 | Which of the following statements explains why net primary productivity is higher near the tropics? | |
| Ans | 1. More predators in the tropics kill herbivores, increasing plant growth in the tropics | |
| 2. Increased species diversity results in increased plant growth | ||
| 3. Availability of newly weathered inorganic nutrients | ||
| 4. Water and warm temperatures in the tropics promote photosynthesis |
Correct Ans Provided: 4
