study of science

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Across
  1. 1. the study of Earth's surface, interior processes, and history
  2. 3. the science by which matter and energy are made useful to humans in structures, machines, and products
  3. 7. the study of the interactions of the biological, cultural, geographical,and historical aspects of humankind
  4. 9. the study of the chemistry of materials such as rocks, soil, and water
  5. 12. the study of fossils and ancient life
  6. 14. the study of Earth's nonliving systems and the planet as a whole
  7. 15. the study of living organisms
  8. 17. the study of human populations
  9. 18. the study of microorganisms
  10. 19. the study of plants
  11. 20. the study of the chemistry of living things
Down
  1. 2. the study of the relationship between human populations and Earth's features
  2. 4. the study of chemicals and their interactions
  3. 5. the study of animals
  4. 6. the study of human population dynamics and statistics
  5. 8. the study of the environment that includes the physical, biological and social sciences
  6. 10. the study of how organisms interact with their environment and each other
  7. 11. the study of matter and energy
  8. 13. the study of Earth's atmosphere and climate
  9. 16. the study of Earth's water resources