When do spring tides occur?
A) only when the Moon and the Sun line up on the same side of Earth, at new Moon
B) whenever the Earth-Moon line makes a 90° angle to the Earth-Sun line
C) whenever Earth, the Moon, and the Sun form a straight line, regardless of which side of Earth the Moon is on (i.e., at the times of full Moon and new Moon)
D) only when the Moon, Earth, and the Sun form a straight line, with the Moon on the opposite side of Earth from the Sun, at full Moon

Question

Quizplus · Accepted Answer

Spring tides occur when the Earth, the Moon, and the Sun form a straight line, which happens at both the full Moon and the new Moon phases. This alignment causes the gravitational forces of the Moon and the Sun to combine, resulting in higher high tides and lower low tides.

When Do Spring Tides Occur