Across
- 2. first man to travel in space
- 4. The major diet of pandas
- 5. father of evolution
- 7. Which material can be recovered from the recycling of soft drink cans
- 8. which atmospheric layer has most of the clouds
- 9. the study of weather
- 10. atmospheric layer that is completely cloudless and free of water vapor
Down
- 1. instrument used to detect earthquakes
- 3. animals living in trees
- 6. instrument is used to measure wind velocity