Answer:
1. A massive star depletes its nuclear fuel; gravity overpowers the star; supernova occurs; core of star collapses
2. black hole; gravitational pull
3. The center of the Milky Way
Explanation:
The first one is Full Moon
The second one is New Moon
The third one is Lunar Eclipse
The last one is Solar Eclipse
180 beats per minute.
<em>Hope This Helps!</em>
D tundra
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