Which one has maximum biomass ?

Options

A. Temperate forest
B. Tropical rain forest
C. Alpine vegetation
D. Deserts

Answer

To determine which ecosystem has the maximum biomass among the options provided (temperate forest, tropical rainforest, alpine vegetation, and desert), we can follow these steps:

### Step-by-Step Solution:

1. **Understand Biomass**:
- Biomass refers to the total mass of living organisms in a given area at a specific time. It is an important measure of the productivity of an ecosystem.

2. **Analyze Each Ecosystem**:
- **Temperate Forest**:
- Experiences moderate summers and winters.
- Average temperature ranges from 15°C.
- Average precipitation is about 2000 mm per year.
- This ecosystem supports a variety of plant and animal life but is not as productive as tropical rainforests.

- **Tropical Rainforest**:
- Has a temperature range of 21°C to 30°C.
- Receives consistent rainfall throughout the year, with an average of 60 mm per month.
- The warm temperatures and high precipitation create ideal conditions for a diverse range of species, leading to high biomass.

- **Alpine Vegetation**:
- Found at high altitudes, it experiences cold temperatures ranging from -12°C to 10°C.
- Average precipitation is about 30 cm per year.
- The harsh conditions limit the growth of plants, resulting in lower biomass.

- **Desert**:
- Characterized by arid conditions with less than 25 cm of precipitation annually.
- Can have extreme temperatures, but overall, the lack of water severely limits plant growth.
- This results in very low biomass compared to other ecosystems.

3. **Compare Biomass**:
- Based on the analysis, tropical rainforests have the most favorable conditions for plant growth due to their warm temperatures and abundant rainfall.
- The temperate forest has moderate biomass, while alpine vegetation and deserts have significantly lower biomass due to harsh conditions and limited water availability.

4. **Conclusion**:
- After evaluating all options, it is clear that the tropical rainforest has the maximum biomass among the ecosystems listed.

### Final Answer:
The ecosystem with the maximum biomass is **Tropical Rainforest**.

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