“EcoMystery: The Treasure Trail”

12345678
Across
  1. 2. I am mined like a mineral but used to power cars and planes; I flow, not sparkle.
  2. 4. My three magic letters (R’s) can turn waste into wealth if humans act wisely.
  3. 6. If trees are cut faster than they grow, this principle of using without depleting fails.
  4. 7. Without me, photosynthesis halts and life collapses — I am not alive, but I support all living things.
  5. 8. Forests act as my “lungs,” yet I am invisible and essential for every breath.
Down
  1. 1. When people and governments work together to protect Earth’s treasures, this practice is born.
  2. 3. I am both a shelter and a source of rain, medicine, and balance — lose me, and deserts follow.
  3. 5. I hide deep beneath the ground, formed over millions of years from heat and pressure — yet humans burn me for a few hours of energy.