Across
- 3. Water vapour gets into the atmosphere because of various ________ activities
- 6. The _________ of freshwater varies from place to place
- 8. The bits of decayed living organisms is called _______
- 9. The endoskeletons and exoskeletons of various animals are formed from __________salts
- 11. On being ________, convection currents are set up in the air
- 12. The air over land would be heated at what rate??
- 14. The outercrust of the Earth is called _________
- 16. The _________ grows on the surface of rocks
- 17. The atmosphere can be heated from the ______ by the radiation that is reflected back by the land
Down
- 1. Water could get into the ______ in the rocks formed due to the uneven heating by the Sun
- 2. Rainfall patterns are decided by the prevailing ______ patterns
- 4. The eggs and ________ of various animals are particularly susceptible to temperature changes
- 5. The fossil fuels contain small amounts of nitrogen and _______
- 7. An ______ in the content of the harmful substances in air is called air pollution
- 10. The process of the rubbing of rocks against the other rocks is known as ??
- 13. Fertile soil can quickly be turned _______ if sustainable partices are not followed
- 15. The water that is found in seas and oceans is ________