Name two phenomena that can be explained on the basis of surface tension.

Explanation

**Step-by-Step Solution:**

1. **Understanding Surface Tension:**
- Surface tension is defined as the tendency of a liquid's surface to shrink to its minimum surface area. This phenomenon occurs due to cohesive forces between liquid molecules, which pull them together.

2. **Identifying the First Phenomenon:**
- The first phenomenon that can be explained by surface tension is the **spherical shape of raindrops**.
- Explanation: When raindrops form, they tend to take on a spherical shape because a sphere has the least surface area for a given volume. This minimizes the surface area, which is a direct result of surface tension trying to reduce the energy associated with the surface.
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