environmental science

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Across
  1. 6. Harmful introduction of substances into the environment. Harmful environmental substances (9 letters)
  2. 7. Biological community of interacting organisms and their environment. Organism community and environment (9 letters)
  3. 8. Resource that can be replenished naturally. Naturally replenishable resource (9 letters)
  4. 9. The variety of life in a particular habitat or ecosystem. Variety of life in a habitat (12 letters)
  5. 10. Process by which green plants use sunlight to synthesize food. Plant process using sunlight (14 letters)
Down
  1. 1. Natural environment where an organism lives. Organism's natural home (7 letters)
  2. 2. Ability to maintain ecological balance without depletion of resources. Ecological balance maintenance (14 letters)
  3. 3. Capable of being decomposed by bacteria or other living organisms. Decomposable by living organisms (12 letters)
  4. 4. Species seriously at risk of extinction. At risk of extinction (10 letters)
  5. 5. Action of protecting the environment and its resources. Protecting the environment (12 letters)