Roots play insignificant role in absorption of water in

Options

A. Wheat
B. Sunflower
C. Pistia
D. Pea

Answer

### Step-by-Step Solution:

1. **Understanding the Role of Roots**:
- Roots are primarily responsible for the absorption of water and minerals from the soil. This is a fundamental function of roots in most terrestrial plants.

2. **Analyzing the Question**:
- The question asks in which of the given options roots play an insignificant role in the absorption of water.

3. **Identifying the Options**:
- Among the options, we need to identify plants that may not rely heavily on their roots for water absorption.

4. **Focusing on Pistia**:
- One of the options is "Pistia". It is important to understand what Pistia is.
- Pistia is an aquatic plant that belongs to the genus of floating plants.

5. **Characteristics of Pistia**:
- Pistia is a perennial plant and is classified as a monocotyledon.
- It floats on the surface of the water, with its roots submerged beneath the water.

6. **Conclusion on Water Absorption**:
- Since Pistia is an aquatic plant, it absorbs water directly from its surrounding environment rather than relying on its roots to extract water from the soil.
- Therefore, the roots of Pistia play an insignificant role in the absorption of water.

7. **Final Answer**:
- Based on the analysis, the correct answer is **Pistia** (Option 3).