Puzzle#5

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Across
  1. 2. The layer of the Earth's atmosphere that protects us from harmful ultraviolet radiation
  2. 4. The process by which living organisms change their environment to better suit their needs
  3. 6. tectonics The movement of tectonic plates that can cause earthquakes and volcanic eruptions
  4. 8. The layer of the Earth's atmosphere closest to the ground
  5. 10. The imaginary line that runs through the center of the earth from North pole to South pole
Down
  1. 1. The study of the Earth's physical and natural features, including its landforms, climate, and resources
  2. 3. The point on the Earth's surface directly above the focus of an earthquake
  3. 5. The outermost solid layer of the Earth, composed of rock and soil
  4. 7. The process by which the Earth's surface is gradually worn down by natural forces
  5. 9. The third planet from the sun and the only known planet with the ability to support life