What is biodiversity? Why are forests considered as "biodiversity hot spots"? List two factors responsible for causing deforestation.

Explanation

### Step-by-Step Solution:

**Step 1: Define Biodiversity**
Biodiversity refers to the variety of life forms on Earth. It encompasses the different species of plants, animals, and microorganisms, as well as the genetic diversity within these species and the ecosystems they form. Biodiversity is measured at three levels:
- **Genetic Level**: Variation within species.
- **Species Level**: The variety of different species.
- **Ecosystem Level**: The variety of ecosystems in a given area.

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