Across
- 4. – Energy that comes from the sun.
- 5. – Efforts made to protect the natural world.
- 6. – Basic unit of energy.
- 7. – The variety of living organisms in an area.
- 8. – Country facing major deforestation issues.
- 11. – The presence of harmful substances in the environment.
- 12. – Dangerous skin disease linked to UV exposure.
- 14. – Process of converting waste into usable material.
- 16. – Molten rock that erupts from volcanoes.
- 20. – Type of farming that depletes soil nutrients.
- 26. – Type of gas responsible for climate change.
- 27. – Underground layer of water-bearing rock.
- 29. – Reflection of sunlight that cools the planet.
- 31. – Moisture such as rain, snow, or hail falling to Earth.
- 32. – Process where water changes into vapor.
- 34. – Boundary between two different ecosystems.
- 36. – Large-scale removal of forested areas.
- 40. – Fuel derived from organic matter.
- 42. – A species introduced to a new habitat that disrupts it.
- 43. – Excess nutrients in water causing algae blooms.
- 46. – Frozen form of water.
- 47. – Energy sources that are naturally replenished.
- 48. – Chemical formula for water.
- 49. – A balanced network of organisms and their environment.
Down
- 1. – Energy-rich substances from ancient organisms.
- 2. – Any form of water falling from the sky.
- 3. – Energy derived from Earth's internal heat.
- 9. – Organism at the top of the food chain.
- 10. – Capable of being decomposed naturally.
- 13. – A dense forest found near the equator.
- 15. – Area where freshwater mixes with saltwater.
- 17. – An organism that only eats plants.
- 18. – A greenhouse gas produced by respiration and combustion.
- 19. – Severe tropical storm system.
- 21. – Cutting trees in a sustainable way.
- 22. – The natural home of an animal or plant.
- 23. – A large body of saltwater.
- 24. – A non-living component of the environment.
- 25. – Energy generated by moving water.
- 28. – Plants that grow naturally without cultivation.
- 30. – A protective layer that shields Earth from UV radiation.
- 33. – Trees that shed leaves seasonally.
- 35. – Gas essential for breathing.
- 37. – A species that no longer exists.
- 38. – Gradual increase in Earth’s average temperature.
- 39. – Process where toxins increase up the food chain.
- 41. – The regular rise and fall of ocean levels.
- 44. – The smallest unit of life.
- 45. – Warming of Earth’s atmosphere due to trapped heat.