Name one anti transpirant.

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Antitranspirants**: Antitranspirants are substances that are applied to the surface of plants to reduce the process of transpiration, which is the loss of water vapor from plant surfaces.

2. **Purpose of Antitranspirants**: The primary function of antitranspirants is to inhibit water loss from plants, which can be crucial during periods of drought or when plants are under stress.

3. **Examples of Antitranspirants**: Two well-known examples of antitranspirants are:
- **Abscisic Acid (ABA)**: A plant hormone that plays a significant role in regulating transpiration by causing the stomata (tiny openings on leaves) to partially close.
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