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Across 1. time before there was writing 5. the new stone age 9. any handheld object that has been modified to help a person accomplish a tasl 10. huge stones used as monuments 12. first part of the stone age 13. a long period of freezing weather that occured a long time ago 14. the middle stone age 15. a strip of land connecting two continents

Down 2. people who hunt animals and gather wild plants, seeds, fruits, and nuts to survive 3. an early ancestor of humans 4. farming or having to do with farming 6. to move 7. a relative who lived in the past 8. the process of changing plants or animals to make them more useful to humans 11. a community of people who share a common culture