GEO crossword

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Across
  1. 3. Engineering related to the design and maintenance of city infrastructure
  2. 5. A decimal-based measurement system used worldwide
  3. 8. Not allowing light to pass through
  4. 9. A whole number that can be positive, negative, or zero
  5. 11. A digit that shows the precision of a measurement
  6. 14. Able to be shaped or bent without breaking
  7. 15. A material that prevents the flow of electricity or heat
Down
  1. 1. The SI unit used to measure energy or work
  2. 2. A strategic tool analyzing political, economic, social, and technological factors
  3. 4. A zero placed at the beginning of a number with no effect on its value
  4. 6. A numerical inaccuracy caused by approximating values
  5. 7. A number made of a whole part and a fraction
  6. 10. A unit of area equal to 10,000 square meters
  7. 12. A measurement system using miles, inches, and pounds
  8. 13. To fall suddenly and sharply