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blsea [12.9K]
3 years ago
7

from sea level, the biosphere goes up 9km and down about 19km. What is the thickness of the biosphere in meters.

History
2 answers:
zhuklara [117]3 years ago
7 0

<span>The biosphere is therefore 28km thick</span>
scoray [572]3 years ago
6 0
1 km = 1,000 meters 

<span>9 km = 9,000 m </span>
<span>19 km = 19,000 m</span>
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