Scientist study earth because earth is the place that we
envolved on and is the only planet in our solar system that is know
to support life and is the fifth- largest planet in our
universe.
Sorry I only know the first one
During the brief period of totality, when the sun is completely covered, the beautiful corona — the tenuous outer atmosphere of the sun — is revealed. Totality may last as long as 7 minutes 31 seconds,
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