Everyday Science
NULL
Medium
Question
The thermosphere extends from about ________ to the base of the ________ near ________?
A
75 km, Mesosphere, 670 km
B
80 km, Ionosphere, 680 km
C
85 km, Exosphere, 690 km
✓ Official correct answer
D
90 km, Ozone Layer , 690 km
Community credibility
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A
75 km, Mesosphere, 670 km
No member explanations yet for this option.
B
80 km, Ionosphere, 680 km
No member explanations yet for this option.
C
85 km, Exosphere, 690 km
No member explanations yet for this option.
D
90 km, Ozone Layer , 690 km
No member explanations yet for this option.
Explanation
According to the keyed exam answer: from about 85 km to the exosphere near 690 km.
Editor note: altitude ranges vary; options left unchanged.
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