revise

1234567891011121314
Across
  1. 2. an observable fact or an event
  2. 4. a term used in geography that describes an area of the Earth where some natural or human-made phenomena occur
  3. 6. a city in Iraq, It was the capital of Abbasid Caliphate
  4. 8. the vast gaseous envelope of air that surrounds the Earth
  5. 11. native
  6. 13. a method of detecting distant objects and determining their position
  7. 14. this word describes the waters of the Earth
Down
  1. 1. a large landmass, such as India that is part if a continent but is considered either geographically or politically as an independent entity
  2. 3. elevated , level or nearly level portion of the Earth's surface
  3. 5. an area defined by its environmental conditions such as climate, landforms, and soil characteristics
  4. 7. an expanse of water with many scattered islands
  5. 9. the art or technique of making maps or charts
  6. 10. type of fuel such as methane produced from renewable biological resources such as plant biomass
  7. 12. relating to cities and the people who live in them