Environmental health

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Across
  1. 3. organism containing genetic material artificially transferred from another species
  2. 5. air surrounding the Earth
  3. 7. a microscopic infectious agent that replicates only within the cells of living hosts
  4. 9. a process that occurs when gases in Earth's atmosphere trap the Sun's heat
  5. 10. a chemical substance that can inhibit or destroy the growth of bacteria and other microorganisms
Down
  1. 1. an organism that lives on or in an organism of another species from the body of which it obtains nutrients
  2. 2. a group of microscopic, one-celled organisms, some of which are involved in infectious diseases, fermentation, and decay.
  3. 4. a system formed by the interaction of a community of organisms with their environment.
  4. 6. the introduction of harmful substances or products into the environment
  5. 8. having the effect of a poison