China builds large rainmaking system in Tibetan plateau

Asia's largest freshwater reserve is at risk of severe drought due to reduced rainfall and rising temperatures. In response, China is implementing cloud seeding by building combustion chambers that convert solid fuel into silver iodide. These chambers are placed on mountainsides to induce precipitation over a vast area, three times the size of Spain. So far, 500 chambers have been deployed in Tibet and Xinjiang.

What is the main cause of the potential severe drought in Asia's largest freshwater reserve?

• Overuse of water resources

• Deforestation

• Decreased rainfall and rising temperatures

• Increased industrial activity

What is the purpose of the combustion chambers being built by China?

• To convert solid fuel into silver iodide for cloud seeding

• To reduce air pollution

• To generate electricity

• To store freshwater

How do the combustion chambers help in cloud seeding?

• They release water vapor directly into the atmosphere

• They create a magnetic field that attracts clouds

• They produce an upward draft that carries particles into clouds

• They emit sound waves to induce rain

What is the target area for China's cloud seeding plan?

• The size of France

• 500,000 square kilometers

• The size of Spain

• 1.6 million square kilometers

In which regions have the cloud seeding chambers been deployed?

• Beijing and Shanghai

• Tibet and Xinjiang

• Guangdong and Fujian

• Sichuan and Yunnan