Earth Day Challenge Crossword
- 2. A process that allows the organic material in solid waste to be decomposed and reintroduced into the soil, often as fertilizer.
- 4. The number of people (or other animals) in an area exceeds the capacity of the environment to support life at a decent standard of living.
- 7. The warming of the earth's temperature caused by depletion of the ozone layer and the greenhouse effect; also referred to as Climate Change
- 10. The excessive use of material things, including food and natural resources
- 13. Lliving a life that only uses what is needed and readily available
- 14. The disappearance of all members of a species from Earth
- 16. Species that normally live and thrive in a particular ecosystem
- 17. A species that influences the survival of many other species in an ecosystem
- 18. A day first organized in 1970 about celebrating and caring for the Earth
- 20. Damage done to a habitat either by a natural disaster or human activities
- 21. The solid part of the earth consisting of the crust and outer mantle where many natural resources can be found
- 22. The process of making new products from materials that were used in another product.
- 23. Cutting down of forests leading to increased erosion and slower soil regeneration.
- 1. The increase in chemical concentration in animal tissues as the chemical moves up the food chain to the top-level consumers
- 3. A natural resource that is not replaced in a useful time frame.
- 5. to use less of something, such as carpooling or limiting how many plastic bottles you use
- 6. The variety of life in the world or in a particular habitat or ecosystem.
- 8. Speaks for the trees
- 9. Species with a small population that are in danger of becoming extinct
- 11. Release of harmful materials into the environment; examples include air, water, soil, light, noise
- 12. Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
- 13. Author of the book from 1971 that illustrated many harmful effects of industry and humans on ecosystems
- 15. Plants and animals that have migrated to places where they are not native and do not have limiting factors to keep their populations in check
- 19. Natural resource that can be replaced at the same rate at which the resource is consumed