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Across 3. a major ecosystem defined by distinctive geography and receiving the same amount of sun and rain 5. dug up from the ground 6. the process of replanting an area with trees 8. he process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture. 10. a community, place, or situation regarded as encapsulating in miniature the characteristic qualities or features of something much larger 11. of birth 12. a person who has been forced to leave their country in order to escape war, persecution, or natural disaster. 13. the warm phase of air currents that develop off the Pacific coast of South America

Down 1. a person who advocates or acts for the protection and preservation of the environment and wildlife 2. struggling, having hard times 4. our current time period or epoch in geological history 5. native or restricted to a certain country or area 7. to make worse 9. relating to an animal's ability to return to a place or territory after traveling a distance away from it.