A) flat.
B) a perfect sphere.
C) an oblate spheroid.
D) an irregular lump.
Correct Answer
verified
Multiple Choice
A) the interval between two consecutive solar noons.
B) slightly longer than a sidereal day.
C) rarely exactly 24 hours long.
D) All of the above.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) from a large mass being torn from where the Pacific Ocean is today.
B) from the impact of Earth with a planet-sized object.
C) from the capture of a planet-sized object that formed the Moon.
D) at the same time that Earth was formed.
Correct Answer
verified
True/False
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) full
B) first quarter
C) last quarter
D) new
Correct Answer
verified
Multiple Choice
A) Coriolis.
B) solstice.
C) perigee.
D) precession.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) full
B) 1st quarter
C) last quarter
D) new
Correct Answer
verified
Multiple Choice
A) directly overhead only once a year.
B) directly overhead twice yearly.
C) above the horizon all day at least once during December.
D) above the horizon all day at least once during June.
Correct Answer
verified
Multiple Choice
A) after morning.
B) after the meridian.
C) astronomical motion.
D) before the meridian.
Correct Answer
verified
Multiple Choice
A) the tilt of Earth's axis.
B) the changing distance of Earth from the Sun during its orbit.
C) the precession of Earth's axis of rotation.
D) the Coriolis effect.
Correct Answer
verified
True/False
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) aligned with the Sun and Earth.
B) full.
C) new.
D) in a quarter phase.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) January
B) March
C) June
D) September
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) never.
B) daily.
C) twice a year, at the equinoxes.
D) twice a year, at the solstices.
Correct Answer
verified
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