Earth Science Vocab. HW

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Across
  1. 5. The way today's crop is grown
  2. 7. The watering of the soil to prepare it for agricultural uses
  3. 9. A group of family that died off forever
  4. 11. When chemicals like Carbon Dioxide traps the Sun's radiation and heat inside of Earth, thus making Earth warmer then it's suppose to be
  5. 12. The removal of Earth's valuable minerals
  6. 13. The uppermost layer of the soil
  7. 14. The growing of a specific crop in a certain location over and over again
  8. 15. Ridged outer part of the Earth
  9. 17. The countryside
  10. 18. The moving of weathered rocks
  11. 20. Cutting down trees for the use of 'city-life'
Down
  1. 1. When the land is overused, not taken care of and the topsoil is blown away
  2. 2. Resources that are harvested in a way that it does not harm the soil
  3. 3. A method of agriculture before planting new seeds
  4. 4. The losing of a certain group of animal in a certain area
  5. 6. The action of people moving from the countryside to the city is called
  6. 8. When there is too many people in a certain place
  7. 10. Examples are growing crops, breeding animals
  8. 16. When an animal eats the grass far too often and too much that the ground becomes vulnerable to erosion
  9. 19. Something that wards off/kill bugs,animals or plants