Vocabulary 1 Unit 4
captivity: animal is kept somewhere and is not allowed to leave
is a noun.Animals bred in captivity would probably not survive if they were released into the wild
creature: any large or small living thing that can move independently
is a noun. The unicorn is a mythical creature.
deforestation: the cutting down of trees in a large area, or the destruction of forests by people
is a noun. Deforestation is destroying large areas of tropical rain forest.