Stomata are abundant on the under surface of the leaves. Give reason.

Explanation

**Step-by-Step Solution:**

1. **Understanding Stomata:** Stomata are small openings on the surface of leaves that facilitate gas exchange in plants. They allow carbon dioxide (CO2) to enter for photosynthesis and oxygen (O2) to exit as a byproduct.

2. **Location of Stomata:** Stomata are predominantly located on the underside (abaxial surface) of leaves rather than the upper side (adaxial surface).

3. **Reason for Under Surface Location:**
- **Reduced Sunlight Exposure:** The underside of the leaves is less exposed to direct sunlight compared to the upper surface. This is important because direct sunlight can increase the rate of transpiration (water loss through evaporation).
...