Spring tides occur on new moon and full moon days because on these days_____________?
Correct answer: A. Sun, moon and earth are in a straight line
- A. Sun, moon and earth are in a straight line
- B. Sun and earth are at right angles
- C. Sun and moon are at right angles
- D. Earth and moon are at right angles
Explanation
During a new moon or full moon, the Sun, Moon, and Earth are nearly aligned, so their gravitational effects reinforce one another. This produces the unusually high spring tides.
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