1. Define cloud-seeding and silver iodide.

2. Why did Chinese meteorologists seed clouds above Beijing?

3. What was the result of the cloud-seeding over Beijing?

4. How did Chinese officials use cloud-seeding prior to the Olympic Games opening ceremony in August?

5. How often does snow fall in Beijing?

6. Read the "Background" and information under "Resources."  Do you agree with the practice of cloud-seeding to end a drought and/or to ensure good weather for an event?  Explain your answer.