Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number. You have TEN minutes to complete the exercise!!

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Across: 1. Lots of Wet Trees here, a big one found in Brazil! 4. The area of the planet able to support life. 6. Food ..... 7. Living factors that affect other organisms in an ecosystem. 8. A living thing: Or........ 9. An animal that eats both plants and animals. 11. Meat eating animal 12. Edaphic factors concern the ....

Down: 2. Non living factors that affect other living things in the ecosystem. 3. Soil borne organism that aids in soil aeration. 5. A large area of the world, where similar climatic conditions are evident. 9. A salty wet place!! 10. A group of organisms living together: Co.........