Across
- 1. Which gas is a primary contributor to acid rain?
- 3. What is the term for a community's initial stage of ecological succession?
- 6. What term describes the maximum load of pollutants an environment can handle without significant damage?
- 7. What type of pollution results from excessive nutrients entering water bodies, causing overgrowth of algae?
- 8. What term describes the study of how organisms interact with each other and their environment?
- 9. What term is used for the introduction of species into regions they do not naturally occur, often causing harm?
- 10. What type of renewable energy is harnessed from the internal heat of the Earth?
Down
- 2. What is the term for the conversion of land from fertile to desert?
- 4. What type of farming avoids synthetic chemicals and relies on natural processes?
- 5. What is the term for the boundary layer in the ocean that separates warmer mixed water above from cooler deep water below?