Across
- 1. organic matter that forms in soil when leaves litter
- 5. an angry protest against authority, often armed
- 10. the surroundings, or all the natural and man-made resources
- 12. an environment that has flat lands in which plants are mainly grass
- 13. all nonliving things, ranging from landforms to chemicals to climatic features.
- 14. relating to, living in, growing in, or taking place in water,
- 16. things we can use, most come from the environment
- 17. living organisms, including microorganisms, plants, animals, and humans
- 18. the removal of the topsoil from land
- 19. anything relating to land
Down
- 2. small fragments of rocks and soil that are moved by erosion and deposition
- 3. things we inherit from our ancestors
- 4. the removal or cutting down of large areas of trees
- 6. when one set of people treat another set of people as slaves
- 7. the special home of an organism
- 8. the slow downward movement of a mass of rock
- 9. the life process carried out by all organisms
- 11. the most important line of latitude
- 14. people we are descended from
- 15. people who come after us, our children and grandchildren
- 18. the ability to do work or to make things move