List the characteristics of cork. How are they formed? Mention their role.

Explanation

### Step-by-Step Solution:

**Step 1: Characteristics of Cork**
- Cork is a type of tissue found in plants.
- It is made up of dead cells that are closely packed and compactly arranged.
- Cork has a rich deposition of a fatty organic substance called suberin.
- Due to the presence of suberin, cork is impervious to water and gases.
- Cork is resistant to fire and has great mechanical strength.
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