Plants can be cultivated in soil less medium where all required nutrients are supplied from the outside in water solution, this method comes under

Options

A. Aeroponics
B. Hydroponics
C. Hybrid culture
D. Critical culture media

Answer

To solve the question, we need to analyze the information provided and identify the correct method of plant cultivation described in the question.

1. **Understanding the Question**: The question states that plants can be cultivated in a soil-less medium where all required nutrients are supplied from the outside in a water solution.

2. **Identifying Key Terms**: The key terms here are "soil-less medium," "nutrients supplied from the outside," and "water solution." These terms suggest a method of growing plants without traditional soil, using water as the primary medium for nutrient delivery.

3. **Evaluating Options**:
- **Aeroponics**: This method involves growing plants in air or a mist environment, with very little water. It does not primarily use water as the medium.
- **Hydroponics**: This method involves growing plants in a water solution where all necessary nutrients are dissolved. It fits the description in the question perfectly.
- **Hybrid Culture**: This refers to the breeding of plants to create hybrids, which is unrelated to the cultivation method described.
- **Critical Culture Medium**: This is a laboratory term referring to a nutrient medium with a short shelf life, not a method of growing plants in water.

4. **Conclusion**: Based on the analysis of the options, the method described in the question is best identified as hydroponics, where plants are grown in a nutrient-rich water solution.

5. **Final Answer**: The correct answer is **Option B: Hydroponics**.