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OpenStudy (katherinkoon):

will medal. What layer of Earth's atmosphere is the thinnest and has such low density that it is sometimes considered a part of outer space? A. troposphere B. mesosphere C. exosphere D. stratosphere no one would answer in science

OpenStudy (kyokokirigiri):

a or b

OpenStudy (katherinkoon):

thx

OpenStudy (kyokokirigiri):

welcome

OpenStudy (katherinkoon):

can u help with more

OpenStudy (kyokokirigiri):

sure if you can help me

OpenStudy (katherinkoon):

sure

OpenStudy (kyokokirigiri):

Limestone can NOT be found in which region? Coastal Plains Great Plains North Central Plains Mountains and Basins

OpenStudy (katherinkoon):

the great plains

OpenStudy (kyokokirigiri):

it was costal

OpenStudy (katherinkoon):

oh sorry

OpenStudy (kyokokirigiri):

its ok

OpenStudy (katherinkoon):

i opened a new question

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