Evolution

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Across
  1. 3. Proposed that organisms evolved toward complexity and perfection.
  2. 5. Created the theory of catastrophism
  3. 8. Traces of organisms from the past.
  4. 9. The theory that all of Earth's processes are uniform throughout time.
  5. 10. Proposed the theory of gradualism
Down
  1. 1. States that natural disasters such as floods and volcanic eruptions have happened often during Earth's long history.
  2. 2. A principle that states that the changes in landforms resulted from slow changes over a long period of time.
  3. 4. Proposed the theory of uniformitarianism
  4. 6. The difference of an individual to other individuals in a group
  5. 7. First person to write about the theory of Evolution.