Explanation

China tested a wireless rail convoy system on the Baoshen Railway, linking seven freight trains with a combined capacity of 35,000 tonnes.

This technology, developed by China Shenhua Energy, could boost railway freight capacity by over 50% without new rail lines.

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Explanation

• China is the largest wheat producer in the world.
• USA is among the largest wheat exporters globally due to strong agricultural infrastructure.

Additional information:

1. China: ~135–140 million metric tons
2. India: ~110–117 million metric tons
3. Russia: ~80–90 million metric tons
4. United States: ~45–55 million metric tons
5. European Union: ~130–142 million metric tons (combined)

Last verified on 21-04-2026

Explanation

• Country: China
• Founded: 2000
• Headquarters: Beijing
• Industry: Oil & Gas / Petrochemicals
• Ownership: State-owned enterprise

Last verified on 21-04-2026

Explanation

• Major construction period: 246–210 BC
• Qin Dynasty ruler: Qin Shi Huang
• Purpose: Defense against invasions (especially Mongols)
• Total length (modern estimate): ~21,000 km
• Construction phases: 7th century BC to 16th century AD (multiple dynasties)

Last verified on 21-04-2026

Explanation

• Taklamakan Desert is the largest desert in northwest China.
• It is the second-largest desert in the world.
• Located in the Tarim Basin, Southern Xinjiang, surrounded by major mountain ranges.
• It lies inside the Tarim Basin, bordered by Kunlun Mountains (S), Pamir Mountains (W), Tian Shan (N), and Gobi Desert (E).
• Known as a “Sea of Death” due to its harsh climate and shifting sand dunes.
• Area: ~337,000 sq km

Last verified on 04-04-2026