Discussion
Neap tides occur when
Answer: B
Correct answer: the sun and moon are at right angles as seen from the Earth
At the quarter moons the sun and moon pull at right angles, so the solar tide partly cancels the lunar one and the range is at its least. Spring and neap tides therefore alternate at roughly weekly intervals. Distance in the orbit does affect the range, through perigee and apogee, but it is alignment that distinguishes springs from neaps.
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