1. Use the Web to determine the status of the Antarctic and Arctic ozone holes. How has the situation changed over the past few years? Explain why most scientists who study this issue blame chemicals...

1. Use the Web to determine the status of the Antarctic and Arctic ozone holes. How has the situation changed over the past few years? Explain why most scientists who study this issue blame chemicals called CFCs for the existence of the ozone holes.

2. Search the Web for current information about upcoming lunar science missions. When is each scheduled to be launched? What new investigations are planned for each mission? What existing scientific issues may these missions resolve?