27. The Changing World Economy Since 1900 - World History: Modern

📖 From World History: Modern • 397 questions available

Practice MCQs for 27. The Changing World Economy Since 1900. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-25

Easy Questions

193

Medium Questions

129

Hard Questions

📝 Topics in this Chapter

📝 Sample Questions

Q1. Define global warming.

🔹 A. The increase in Earth's surface temperature due to natural volcanic activity

🔹 B. The uncontrollable warming of the atmosphere caused by large quantities of gases emitted from industry

🔹 C. A temporary cooling period caused by solar eclipses

🔹 D. A RISE IN SEA LEVEL UNRELATED TO TEMPERATURE

💡 Difficulty: easy | ✅ Correct: B

Q2. Why did OPEC try to conserve oil during the 1970s?

🔹 A. To increase global oil consumption

🔹 B. To stabilize prices and extend the lifespan of reserves

🔹 C. To promote renewable energy

🔹 D. TO REDUCE GEOPOLITICAL INFLUENCE

💡 Difficulty: medium | ✅ Correct: B

Q3. How does metal mining (e.g., copper, zinc) contribute to environmental pollution?

🔹 A. It releases only harmless gases

🔹 B. It generates tailings that can leach toxic substances

🔹 C. It reduces atmospheric CO₂

🔹 D. IT CLEANS WATERWAYS

💡 Difficulty: hard | ✅ Correct: C

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