Across
- 5. emission of energy as electromagnetic waves or subatomic particles
- 6. the lowest layer of the earth's atmosphere where clouds are formed and weather occurs
- 8. to move steadily and continuously in a stream or current
- 9. a layer in the atmosphere where meteorites burn up
- 10. the rigid outer layer of the earth, containing the crust and mantle
Down
- 1. The envelope of gasses surrounding the surface of the earth
- 2. gaseous compounds released into the earth's atmosphere
- 3. the layer of the atmosphere above the troposphere, approx 50km above the earth's surface
- 4. all the water on the earth
- 7. the regions of the earth's surface where organisms live, containing many ecosystems