Across
- 2. Plastic materials produced from renewable biomass sources.
- 4. The introduction of contaminants into the natural environment that cause adverse change.
- 5. Change the form, character, or function of something.
- 6. The natural home or environment of an animal, plant, or other organism.
- 8. he way you earn the money you need to pay for food, a place to live, clothing, etc.
- 10. A forest characterized by high and continuous rainfall, with annual rainfall in the case of tropical.
- 12. An animal that moves pollen from the male anther of a flower to the female stigma of a flower.
- 13. The process of converting waste materials into new materials and objets.
- 15. The process of protecting an environment and returning it to its natural state.
- 17. An area of land that has not been used to grow crops or had towns and roads built on it.
- 19. The broadest sense, is the natural, physical, or material world or universe.
- 20. All of the people born and living at about the same time, regarded collectively.
- 21. The preservation or efficient use of resources, or the conservation of various quantities under physical laws.
- 23. A contagious bacterial disease characterized by fever and delirium.
- 24. The long-term average of weather, typically averaged over a period of 30 years.
Down
- 1. Plant or animal products that can be grown and harvested extensively for profit or subsistence.
- 3. A person who believes strongly in political or social change and takes part in activities such as public protests to try to make this happen.
- 7. The variety and variability of life on Earth.
- 9. Aboveground portion of plant community or crop.
- 11. Land covered with trees.
- 14. The air, water, and land in or on which people, animals, and plants live.
- 16. The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
- 17. All organisms that grow or live wild in an area without being introduced by humans.
- 18. Very small pieces of plastic that pollute the environment.
- 22. Land that is used for or is suitable for farming.