Humanities Review

5. This biome is characterized by vast treeless regions with harsh climates.
7. The place where a river flows into a larger body of water, often seen as the lifeline of early civilizations.
9. A scientist's term for ancient human ancestors.
11. Primary evidence from the time period being studied.
12. Seasonal patterns and short-term atmospheric conditions.
14. River The area where early civilizations flourished due to fertile soil and access to water.
15. A large community of people with their own distinct culture and way of life.
19. The movement of Earth's tectonic plates.
21. The solid innermost part of Earth.
23. The oldest known form of writing developed by the Sumerians in Mesopotamia.
24. The biome characterized by vast open areas of grasses and few trees.
28. A term for ancient humans known for living in caves and using tools.
29. The part of Earth's surface where tectonic plates meet and move towards each other.
32. The person who studies ancient cultures by examining artifacts.
33. Plate The Earth's large land masses.

1. An ancient step pyramid structure found in Mesopotamia.
2. The boundary where tectonic plates slide past each other.
3. A boundary where tectonic plates move away from each other
4. The warm and wet biome near the equator with a high diversity of plants and animals.
6. The hot and dry biome with little rainfall and sparse vegetation.
8. Revolution The process by which early humans developed agriculture and settled into stable communities.
9. An Egyptian system of writing using symbols and pictures.
10. An early agricultural society's area of origin along the Tigris and Euphrates rivers.
13. Early humans who lived by hunting and gathering food.
16. The large water-covered plates on Earth's surface.
17. The second-hand accounts of historical events.
18. A community of organisms and their physical environment interacting together.
20. Crust The layer of Earth below the mantle.
22. The movement of people from one place to another, often seasonally.
25. The thick layer of the Earth located between the crust and the core.
26. A writing material made from a reed plant, used by ancient Egyptians.
27. The scientific term for modern humans.
30. The cyclical changes in climate and weather patterns over a year.
31. The process through which species change over time in response to environmental pressures.