Galileo ___________telescopes.
A) did his work before the invention of
B) benefited from and for his observations came to almost exclusively use
C) built the first
D) rarely used
Correct Answer:
Verified
Q73: The Sun is considered an_star.
A) small
B) large
C)
Q74: Yellow stars have a higher luminosity than_
Q75: Shorter wavelengths correspond to _energetic photons.
A) moderate
B)
Q76: Examine the words and/or phrases below and
Q77: Sunspots appear dark because they are _than
Q79: Examine the words and/or phrases below and
Q80: What fuel is the source of energy
Q81: The nuclear reaction process of converting hydrogen
Q82: When several radio telescopes are connected together,
Q83: The Sun is composed almost entirely of
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