Review

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Across
  1. 3. - Doctors suggest ___ exercise for good health.
  2. 7. - Planting more trees can help ___ air pollution.
  3. 9. - Illegal ___ destroys the rainforest.
  4. 12. - Climbing a mountain is a big ___.
  5. 13. - Polluted rivers ___ the health of local communities.
  6. 14. - Plants ___ sunlight to make food.
  7. 15. esteem - Helping others can improve your ___ and confidence.
Down
  1. 1. - The new ___ among teens is using eco-friendly products.
  2. 2. - We celebrate an ___ festival in our village.
  3. 4. - Many animals face ___ because of habitat loss.
  4. 5. - Scientists can ___ future weather using technology.
  5. 6. - We should ___ the importance of protecting nature.
  6. 8. - Everyone can ___ to saving energy at home.
  7. 10. - Some natural ___ are protected as national parks.
  8. 11. - Running burns a lot of ___ every day.