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OGO

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U.S. Aerospace.
Orbiting Geophysical Observatory: one of a series of scientific satellites that studied sun-earth relationships and the earth's atmosphere, ionosphere, and magnetosphere.
QUIZ
QUIZ YOURSELF ON “ITS” VS. “IT’S”!
Apostrophes can be tricky; prove you know the difference between "it’s" and "its" in this crafty quiz!
Question 1 of 8
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.
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