environment

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Across
  1. 1. We build ___________ to rear animals for food.
  2. 5. We change ________________ in many ways.
Down
  1. 2. The changes we make to our environment __________ plants and animals.
  2. 3. We build _____________ to help people cross the river.
  3. 4. We cut trees to build ___________ for our shelter.