Define mass extinction

Explanation

### Step-by-Step Text Solution:

1. **Definition of Mass Extinction**:
Mass extinction refers to a significant and rapid decrease in the biodiversity on Earth, characterized by the widespread and abrupt loss of a large number of species in a relatively short geological time frame.

2. **Characteristics of Mass Extinction**:
- It is often associated with large-scale destruction of living organisms.
- It can occur due to sudden catastrophic events, such as meteor impacts, volcanic eruptions, or drastic climate changes.
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