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Exam (elaborations)
Astronomy 207 Midterm 4 - UofC Exam Actual Questions and Answers Verified 100% Correct 2026.
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---13December 20252025/2026A+
- Astronomy 207 Midterm 4 - UofC Exam Actual 
Questions and Answers Verified 100% Correct 
2026. 
 
 
 Earth's stratosphere is heated primarily by which process? 
A) Convection from the Earth's surface. 
B) Absorption of infrared radiation by greenhouse gases. 
C) Absorption of visible light by ozone. 
D) Absorption of ultraviolet radiation by ozone. 
E) Atoms and molecules absorb infrared sunlight. - ANSWER -D) Absorption of 
ultraviolet radiation by ozone. 
 
 Convection occu...
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$11.99 More Info
TopGradeGuru
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Exam (elaborations)
Astronomy 207 Midterm 4 - UofC Exam Actual Questions and Answers Verified 100% Correct 2026.
-
---13December 20252025/2026A+
- Astronomy 207 Midterm 4 - UofC Exam Actual 
Questions and Answers Verified 100% Correct 
2026. 
How fast do plates move on Earth? 
A) a few centimeters per year 
B) a few millimeters per century 
C) a few kilometers per century 
D) quite fast, but only during earthquakes 
E) about 1 mile per hour - ANSWER -A) a few centimeters per year 
Ridges in the middle of the ocean are places where 
A) one plate slides under another, returning older crust to the mantle. 
B) hot mantle material ri...
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TheExamMaestro