Seudónimo Seudónimo

22-05-2015
Biology

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What kind of information did Sputnik I and II provide?

A.
information about earth’s outer atmosphere

B.
the temperature at the sun’s core

C.
the composition of the Martian surface

D.
the approximate age of the moon

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Аноним Аноним

22-05-2015

A. It's purpose was to help us learn about the density of Earth's upper atmosphere.

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