Describe characteristics and uses of coke.

Explanation

### Step-by-Step Solution:

**Step 1: Define Coke**
Coke is a solid carbonaceous material that is derived from the destructive distillation of coal. It is primarily used in various industrial processes.

**Step 2: Describe the Characteristics of Coke**
1. **Toughness**: Coke is known for its toughness, which means it has a high strength and can withstand significant pressure without breaking.
2. **Color**: Coke is characterized by its black color, which is typical of carbon-rich materials.
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