People & Environment

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Across
  1. 6. Singapore is moving towards becoming a _____ in Nature.
  2. 8. Fossil fuel are needed to generate _____.
  3. 9. The _____ refers to our surroundings.
  4. 10. Less than 3% of the fresh water in the world is trapped in _____.
  5. 12. _____ is one example of a renewable resource.
  6. 13. _____ is one example of a non-renewable resource.
Down
  1. 1. In the beginning, Singapore was a _____ city.
  2. 2. If we waste water, water will be _____.
  3. 3. Non-renewable resources are materials that are _____ in quantity and cannot be replenished quickly.
  4. 4. _____ fuels come from remains of dead plants and animals.
  5. 5. More than 97% of the world's water is found in _____.
  6. 7. _____ are materials that will not run out as long we do not use them faster than they can be replenished.
  7. 11. Our environment provides _____ to meet our needs.