The coldest region of the Earth's atmosphere is__________?
Correct answer: D. Mesopause
- A. Exosphere
- B. Thermosphere
- C. Stratopause
- D. Mesopause
Explanation
The mesopause is the boundary at the top of the mesosphere and is generally the coldest part of Earth's atmosphere. Temperatures there can fall to about minus 90 degrees Celsius.
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