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Across 1. aware of or well acquainted 3. to guard, keep safe, or shelter 6. the land, water and air in which people animals and plants live 8. people born during the same time period 9. to act before an audience 10. to vanish from sight 13. express your thoughts and feelings so that others understand them 14. extremely small in size 15. the third planet from the sun 17. to divide or move apart 18. peaceful or relaxed 19. primary or most important 20. the way a situation is generally developing or changing

Down 2. creation of something new 4. a document proving a fact or accomplishment 5. physical condition 7. manner or actions of a living being 11. harmful substances in the air, water, or soil 12. living, full of life or movement 16. having characteristic of people