Environmental sustainability/health & fitness

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Across
  1. 3. Energy sources like solar or wind that do not run out.
  2. 4. Physical or mental tension from feeling overwhelmed by pressure
  3. 6. Physical activity or training to stay healthy and strong
  4. 7. The specific food that a person eats each day
Down
  1. 1. Food that is grown naturally without harmful chemicals
  2. 2. A substance in food that keeps your body alive
  3. 3. To convert waste materials into new, usable objects
  4. 5. Able to be used again instead of thrown away