Final answer:
The lowest tides of a month occur at the first quarter and third quarter phases of the moon, also known as neap tides. During these phases, the Sun is at a right angle to the Earth-Moon alignment, resulting in weaker gravitational forces and lower tides.
Step-by-step explanation:
The lowest tides of a month occur during the 1) first quarter and 3) third quarter phases of the moon. These phases are also known as the neap tides. Neap tides happen when the Sun is at a right angle (90°) to the Earth-Moon alignment, creating weaker gravitational forces and lower tides.