The ozone layer is located:
A. Between 1 to 3 miles (1.6 to 4.8 km) above the earth's surface
B. Between 0 and 7 miles (0 to 11 Km) above the earth's surface
C. Between 7 and 30 miles (11 to 48 km) above the earth's surface
D. Between 30 and 300 miles (48 to 482 km) above the earth's surface
Answer: C
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