Across
- 3. What is the unit in which radio activity is measured?
- 4. This atmospheric layer absorbs most of the Sun’s ultraviolet (UV) radiation
- 7. Gases that trap heat in the atmosphere are called __________gases
- 8. What is the longest mountain range in India?
- 9. Name the largest freshwater lake in Northeast India
- 10. What is the longest river in India?
Down
- 1. What is the main reason behind soil erosion?
- 2. What is the instrument used to detect earthquakes?
- 5. What is the outermost layer Earth’s atmosphere called?
- 6. This tree emits oxygen at night