Name a classic example of an ecosystem.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Ecosystem**: An ecosystem is a community of living organisms interacting with their physical environment. It consists of both biotic (living) and abiotic (non-living) components.

2. **Components of an Ecosystem**: An ecosystem is made up of three main components:
- **Lithosphere**: The earth's crust, which includes soil and rocks.
- **Atmosphere**: The layer of gases surrounding the planet.
- **Hydrosphere**: All the water bodies on Earth, including oceans, rivers, lakes, and ponds.
...