Wildlife Studies Crossword Puzzle

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Across
  1. 4. Gems that are found on rings
  2. 7. Plants need the energy waves from this source to survive
  3. 8. A gas used to make balloons float
  4. 9. Blocks are made of these for deer to lick
  5. 10. Aquatic critter
  6. 11. Plants grown in fields to feed cattle and people
  7. 12. Fossilised organic matter
  8. 13. Plants produce it and we breathe it in
Down
  1. 1. A chemical element and an essential mineral for the body, vital for building strong bones, teeth, and cell membranes
  2. 2. A category of animals that have low population numbers and are close to all dying off
  3. 3. A fossil fuel that forms between layers of organic matter
  4. 5. The material swords are made up of
  5. 6. And area of land that is soaked with water but you're able to walk in it
  6. 7. Nutrient substrate perfect for plant growth
  7. 10. Areas of land packed thick with trees and plants