Environment

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Across
  1. 3. ships industrial-style ships used for the large-scale collection and processing of fish.
  2. 4. is the part of the earth in which animals and plants can live.
  3. 6. an interconnected and symbiotic grouping of animals, plants, fungi, and microorganisms.
  4. 7. pollution toxic or radioactive gases or particulate matter introduced into the atmosphere, usually as a result of human activity.
  5. 8. engine an internal combustion engine that uses diesel as fuel, producing harmful fumes.ecology - a branch of science concerned with the interrelationship of organisms and their environment.
Down
  1. 1. dioxide (CO2) a naturally occurring greenhouse gas in the atmosphere
  2. 2. is a thin layer of gases that surrounds the Earth.
  3. 5. of or relating to life
  4. 7. rain rain very harmful to the environment.