An effective theory must:
A) have been proven.
B) must have been around for centuries or longer.
C) be continuously tested.
D) include mathematical formulae.
Correct Answer:
Verified
Q24: How long is the precession cycle?
A)1 day
B)29.5
Q25: A year is defined as:
A)the time it
Q26: Into how many constellations is the celestial
Q27: Aristotle's hypothesis was that:
A)lunar eclipses were created
Q28: Where on Earth can you observe all
Q30: The place the Sun stops its northward
Q31: While watching a star, you see it
Q32: Why did early civilizations observe constellations?
A)only for
Q33: A light-year is:
A)about 365 Earth days.
B)the distance
Q34: The stars appear to be attached to
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