Brainstorm
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Which city was the first to reach a population of 1 million?Anonymous voting
- Rome
- London
- Tokyo
- Istanbul
Which gas is the main component of air?Anonymous voting
- Nitrogen
- Oxygen
- Carbon dioxide
- Methane
👍 1
The weight of a sword in medieval times?Anonymous voting
- Up to 2kg
- 5 kg
- 10 kg
- 15 kg
👍 1