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Delvig [45]
3 years ago
7

Please help..

Biology
1 answer:
d1i1m1o1n [39]3 years ago
5 0
1) When a star's temperature or size increases, its luminosity increases. In other words it seems more bright.

2) The electromagnetic spectrum is used to determine different types of light waves (infrared, visible light, x-rays etc.) which produced by different kinds of astronomical objects.
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