Our Environment

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Across
  1. 3. We clear land to build ______ to rear animals.
  2. 4. A rough and dull rock.
  3. 6. Cutting down forests affects plants and _______.
  4. 7. Where we extract rocks from underground.
  5. 11. A stone is large but a boulder is ______.
  6. 12. A pebble is ___________ but a stone is rough.
  7. 13. Where we extract rocks from under the water.
  8. 15. A smooth and shiny rock.
Down
  1. 1. A rough and shiny rock.
  2. 2. We clear land to grow _____________.
  3. 5. A smooth and dull rock.
  4. 8. We build ________ to move from place to place.
  5. 9. Where we extract rocks from Earth's surface.
  6. 10. A boulder is ________ but a pebble is light.
  7. 14. We build a ____________ over a river.