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staedtler staedtler
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8 years ago
What is a plage?
A)   A sudden eruption on the photosphere, in the vicinity of a sunspot group
B)   A region in the corona that looks bright against the darkness of space but dark against the brighter photosphere
C)   A bright area in the chromosphere
D)   A bright area on the photosphere
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Discovering the Universe

Discovering the Universe


Edition: 7th
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discovererdiscoverer
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staedtler Author
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8 years ago
Grinning Face Exactly what I needed
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