Across
- 4. Opening in the Earth's surface from which hot molten rocks and gases can escape
- 6. Clearing of forests by cutting or burning trees
- 7. Breaking down of stones, rocks and minerals over time
- 11. Magma that flows on the Earth's surface
- 13. Weather conditions of a place over a period of time
- 14. Populations of organisms that interact with one another in a habitat
- 16. Molten rock found in the Earth's crust
- 18. Transfer pollen grains from one flower to another
- 19. Melted by heat
- 21. Microscopic plant-like organisms found in aquatic habitats
- 24. Substances that can wear out rocks, stones and minerals
- 26. Using up of resources
Down
- 1. Cover formed by the leaves and branches of tall trees in a forest
- 2. Related to land or earth
- 3. Reduction or removal of industries
- 5. (CFCs): Gases that can break down the ozone layer
- 8. Shaking of the ground due to movement of the Earth's crust
- 9. Things owned by a person
- 10. layer: Thin layer of gas in the atmosphere that prevents ultraviolet rays from reaching the Earth
- 12. Huge ocean waves caused by an earthquake that occurs underwater
- 15. erosion: Removal of the top layer of soil
- 17. Outer layer of the Earth
- 20. Movement of large amounts of rock and earth down a slope
- 22. warming: Rise in temperature on the Earth
- 23. Community of living organisms interacting with its non-living environment
- 25. crops: Crops grown to cover the soil and protect it
