Puzzle #04

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Across
  1. 2. The envelope of gases surrounding the Earth.
  2. 4. Involving or relating to the use of computer technology.
  3. 6. A stretch of land, especially with regard to its physical features.
  4. 7. Visual images, especially satellite images.
  5. 9. A green pigment responsible for the absorption of light in the process of photosynthesis.
Down
  1. 1. A device that detects or measures a physical property.
  2. 3. The process of making maps.
  3. 5. The physical material at the surface of the earth.
  4. 8. Existing, happening, or operating in the air.
  5. 10. To lay or place something over something else.