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Shape of Earth, Geologic History and Landscape Development Regent Review Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Across:
3. Latitude lines (parallels) are drawn from ________ to west and measured from north to south (Equator) 5. Longitude is based on the observations of the __________ (also a star). 7. The true shape of the _________ is an Oblate Spheroid. It is flattened at the poles and bulging at the equator. 8. Carbon 14 (14C) – dates recent ________ (once living) remains up to 50,000years old. 10. Undisturbed rock – ________ layer is on the bottom (superposition). 11. _________ lines bend upstream as they cross a stream or river. 12. _________ are dependant on bedrock structure and climate. 14. Unconformity: buried erosional surface – a _________ in the rock record. 15. The best model for the shape of the earth is a ________. 16. _________ landscapes – steep slopes, angular features.
Down:
1. The Age of the earth is 4.6x109 years old, 4.6 _________ years old, 4,600 million years. 2. ________ Landscapes – smooth, rounded slopes and features. 4. The best evidence for the spherical shape of the earth are pictures from ________. 6. Positions on earth are located using the coordinate system of ________ and longitude. 9. Intrusions and faults are ________ than the rock they cut through. 12. ________ lines (meridians) are drawn from North Pole to South Pole and are measure from east to west (Prime Meridian). 13. The ________ the isolines (isotherms, isobars, contour lines…), the steeper the gradient (slope).
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