mileto5824
16.09.2019 •
Physics
Approximately how long does it take a star the size of the sun to become a red giant?
a) 2 million years
b) 10 million years
c) 45 billion years
d) 25 million years
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Ответ:
Ответ:
its should be heat and sound and electron-graphic
Explanation:
i think thats what it is because it was from a text book but i hope this helped if not give me feedback