The plants which live on saline soil are known as:

Options

A. Xerophytes
B. Halophytes
C. Heliophytes
D. Hydrophytes

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of plants that thrive in saline soil, which is characterized by high salt concentration.

2. **Analyzing the Options**:
- **Option 1: Xerophytes**: These are plants adapted to survive in dry environments with little water. They do not specifically thrive in saline conditions. Therefore, this option is incorrect.

- **Option 2: Halophytes**: These are plants that are specifically adapted to grow in environments with high salinity, such as saline soils. They can tolerate and even thrive in high concentrations of salts like NaCl, MgSO4, and MgCl2. This option is correct.

- **Option 3: Heliophytes**: These plants require high intensity of sunlight for growth. While they may grow in various soil types, they are not specifically adapted to saline conditions. Thus, this option is incorrect.

- **Option 4: Hydrophytes**: These plants grow in or on water and are not adapted to saline soils. Therefore, this option is also incorrect.

3. **Conclusion**: After analyzing all the options, the correct answer is that the plants which live on saline soil are known as **halophytes**.

**Final Answer**: Halophytes

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