📝 What were the consequences of immigration in USA?

Q1. Which city first exceeded one million inhabitants in 1880?

💡 Difficulty: easy | ✅ Correct: A

Q2. If immigration were reduced by half from 1880 to 1920, what approximate reduction in the labour force would be expected, assuming a linear relationship?

💡 Difficulty: medium | ✅ Correct: A

Q3. If the 1920 labour force was 30 million, how many workers would be lost without immigration, given a \(14\%\) reduction?

💡 Difficulty: hard | ✅ Correct: B