Final answer:
The true statements about lunar phases are that a full moon occurs when the Earth is between the sun and the moon, and a new moon occurs when the moon is between the Earth and the sun. Spring tides happen during the new and full moon while Neap tides happen during the first and third quarter moon phases.
Step-by-step explanation:
Among the given statements about lunar phases, A) A full moon occurs when the Earth is between the sun and the moon and B) A new moon occurs when the moon is between the Earth and the sun are true. During a full moon, we see the entire lit portion of the Moon, because it is positioned opposite to the Sun with the Earth in between. A new moon, on the other hand, occurs when the Moon is between the Earth and the sun and the side of the moon facing the Earth is in shadow. However, the statements C) Spring tides occur during the first and third quarter moon phases and D) Neap tides occur during the new and full moon phases are incorrect. Spring tides occur during the new and full moon when the gravitational forces of the Sun and Moon are aligned. Neap tides occur during the first and third quarter moon phases when the gravitational forces of the Sun and the Moon are perpendicular to each other.
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