Across
- 5. - what is used to measure temperature
- 6. - what we breathe
- 9. - main cause of soil erosion
- 10. - kind of pollution that strata with N
Down
- 1. - Greenhouse effect is the main reason of
- 2. - the layer of gases that surrounds earth
- 3. - process by which plant use sunlight to create oxygen
- 4. - national bird on India
- 7. - cloud that is close to the ground and having water droplets
- 8. - the tallest animal