Which of the following ecosystem has highest productivity ?

Options

A. Tropical deciduous forest
B. Temperature coniferous forest
C. Tropical rain forest
D. Desert shrub

Answer

**Step-by-Step Solution:**

1. **Understanding Ecosystem Productivity**: Ecosystem productivity refers to the rate at which energy is produced and stored in an ecosystem. It is often measured in terms of biomass produced per unit area over a specific time period.

2. **Identifying Ecosystems**: Different ecosystems have varying levels of productivity. Common ecosystems include tropical rainforests, temperate forests, grasslands, deserts, and aquatic ecosystems.

3. **Evaluating Tropical Rainforests**: Tropical rainforests are known for their high levels of biodiversity and biomass. They receive a significant amount of rainfall (over 2000 mm annually) and have a warm climate with moderate temperatures throughout the year.

4. **Factors Contributing to High Productivity**:
- **High Rainfall**: The abundant rainfall supports a wide variety of plant life, which in turn supports diverse animal species.
- **Moderate Temperature**: The warm temperatures promote year-round growth of plants.
- **Less Seasonal Variation**: The minimal seasonal changes allow for continuous growth and reproduction of organisms.

5. **Conclusion**: Given these factors, tropical rainforests are recognized as the ecosystems with the highest productivity compared to others like deserts or temperate forests.

**Final Answer**: The ecosystem with the highest productivity is the **tropical rainforest**.

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