Let's Ponder!

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Across
  1. 1. Which is the only bird able to fly backwards?
  2. 3. I am an unusual plant and is eaten by many people.
  3. 4. What liquid do plants need for preparing food?
  4. 6. What name is given to animals that eat both flesh and plant material?
  5. 7. What is the name of largest ocean on earth?
  6. 10. Highest mountain
  7. 12. Silkworm prefers to eat my leaves.
  8. 14. Fastest animal on two legs
  9. 15. Which plant has flowers but no proper leaves?
Down
  1. 2. Carnivorous plants are also called
  2. 5. Largest land animal
  3. 8. This is the favourite food of the giant panda.
  4. 9. Food collects here after we chew and swallow.
  5. 11. What is the name of the protective outer layer of trees?
  6. 13. Study of plants is known as
  7. 16. Largest organ in humans