Question: Choose the correct answer.
WW1 weapons ended close combat, firing rapidly across trenches. What weapon shot 500 rounds a minute?
Smoke bomb
Tank
Mortar
Machine gun
1. **State the problem:** Identify which WW1 weapon fired 500 rounds per minute.
2. **Recall weapon firing rates:**
- Smoke bombs are explosive devices, not rapid-fire weapons.
- Tanks fire shells, not rapid rounds.
- Mortars fire explosive shells at slower rates.
- Machine guns are designed for rapid fire, often hundreds of rounds per minute.
3. **Apply knowledge:** The weapon that fires approximately 500 rounds per minute is the machine gun.
4. **Conclusion:** The correct answer is **Machine gun**.