Question

at which phase(s) of the moon do the highest and lowest tides occur? view available hint(s) full and new new and first - quarter first - quarter third - quarter

Explanation:

When the Moon is in the full or new phase, the Sun, Moon, and Earth are aligned. This alignment causes the gravitational forces of the Sun and Moon to combine, resulting in higher - than - normal high tides (spring tides) and lower - than - normal low tides. In the first - quarter and third - quarter phases, the Sun and Moon are at right angles to each other relative to Earth. Their gravitational forces partially cancel each other out, leading to less extreme tides (neap tides).

Answer:

full and new