Question

the diagram models four moon phases.
during which 2 lunar phases is the tide weakest?
lunar phases

Explanation:

Weakest tides (neap tides) occur when the gravitational pulls of the Moon and Sun are perpendicular, which happens during the first and third quarter moon phases. These phases are represented by the half-illuminated moon images (1 and 4), where half the moon is light and half is dark.

Answer:

1 (First Quarter Moon) and 4 (Third Quarter Moon)