Across
- 1. What is the excessive growth of algae caused by nutrient pollution?
- 4. What is a widely accepted explanation of natural phenomena?
- 6. What is the systematic study of the environment and environmental problems?
- 10. Which branch of ecology studies a group of the same species?
- 11. What are the non-living parts of an ecosystem called?
- 12. Who is the founder of modern ecology?
- 13. What process returns nitrogen to the atmosphere?
- 14. Which branch of ecology studies energy flow in ecosystems?
- 15. Which branch of ecology studies a single organism?
- 17. Which branch of ecology studies interactions among different species
- 18. Which sphere contains all of Earth’s water?
- 20. Cycle What cycle involves the movement of carbon through living things and the atmosphere?
- 23. Which sphere is where life exists?
- 25. What is a testable explanation for an observation?
- 26. What is the process where water changes into vapor?
Down
- 2. What is the Earth’s protective blanket of gases?
- 3. What type of rain is caused by sulfur dioxide
- 5. What is the process where plants release water vapor?
- 7. What process converts atmospheric nitrogen into ammonia?
- 8. What describes what happens in nature?
- 9. Which sphere is the outer solid layer of the Earth?
- 10. What cycle describes the movement of water on Earth?
- 14. What is the scientific study of organisms and their environment? Ecology What are the living parts of an ecosystem called?
- 16. What is the study of the distribution of species called?
- 19. Cycle Which cycle has sedimentary rocks as its main reservoir?
- 20. What is the main source of energy for organisms on Earth?
- 21. What is the first step of the scientific method?
- 22. Tide What is the common name for harmful algal blooms?
- 24. What is the organized body of knowledge obtained through study and experimentation?