crossword puzzle

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Across
  1. 2. conceive, design, build, supervise, operate, construct and maintain infrastructure projects and systems in the public and private sector
  2. 3. design power-producing machines
  3. 6. use the principles of engineering, soil science, biology, and chemistry to develop solutions to environmental problems
  4. 7. evaluate, design, and maintain computer hardware and software systems
  5. 8. develop and design chemical
  6. 9. a person who practices civil engineering
Down
  1. 1. design, develop, test, and supervise the manufacture of electrical equipment
  2. 3. create and study materials at the atomic level
  3. 4. there are six types of it
  4. 5. another term for genetic