Name the following:
Two non-metals used in fireworks (crackers etc.)

Explanation

**Step-by-Step Solution:**

1. **Identify the Non-Metals**: We need to name two non-metals that are commonly used in fireworks or firecrackers.

2. **Research Non-Metals in Fireworks**:
- Non-metals are elements that typically do not conduct electricity and have low melting and boiling points.
- In the context of fireworks, we look for non-metals that contribute to the combustion and visual effects.

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