Geography
Geography, 21.04.2020 04:47, SketchWasTaken

1. A protostar has not yet kindled nuclear fusion but glows: A. in the ultraviolet, B. in the infrared, C. with gamma ray emission.

2. Large, hot young stars ionize an HII region (singly ionized) region around them called A. HI region, B. 'The zone', C. Stromgren Sphere.

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1. A protostar has not yet kindled nuclear fusion but glows: A. in the ultraviolet, B. in the infrar...

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