Life on Our Planet Vocabulary

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Across
  1. 3. When something fills a place quickly and in large numbers.
  2. 5. A document that gives someone’s reasons for believing that something is or is not true.
  3. 7. An idea or picture of something in your mind.
  4. 8. Something that is the only one of its type; one of a kind.
Down
  1. 1. An event that results in serious damage, death or problems.
  2. 2. A thing or person that you admire a lot.
  3. 4. When something is gradually decreasing in strength, quality or amount.
  4. 6. An animal that is not wild or dangerous, usually because it is controlled by humans.