Which is not an energy crop

Options

A. Tapioca
B. Sugarcane
C. Calotropis
D. Sugar Beet.

Answer

To determine which is not an energy crop, we need to understand what energy crops are and identify the options provided.

### Step-by-Step Solution:

1. **Define Energy Crops**:
- Energy crops are plants cultivated specifically for the purpose of producing biofuels, such as ethanol or bioethanol. These crops are harvested and processed to create renewable energy sources.

2. **Identify Common Energy Crops**:
- Common examples of energy crops include:
- **Tapioca**: Often used for bioethanol production.
- **Sugarcane**: A major source of ethanol.
- **Sugar Beets**: Also used for bioethanol production.

3. **Analyze the Given Options**:
- The question likely presents several options, including tapioca, sugarcane, sugar beets, and another plant.

4. **Identify the Non-Energy Crop**:
- Among the options, **Callotropis** (also known as Calotropis) is mentioned. This plant is classified as a petrocrop, which means it is not primarily grown for biofuel production but for latex and hydrocarbons that can be converted into biofuels.

5. **Conclusion**:
- Therefore, the correct answer to the question "Which is not an energy crop?" is **Callotropis**.

### Final Answer:
**Callotropis** is not an energy crop.

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