1. the first quarter moon always occurs

a. when the moon is closer to the sun than the earth is.

b. when the moon is at right angles to the direction of the sun.

c. when the moon is directly opposite the position of the sun.

d. on the 7th or 8th of every month

2. the full moon always occurs

a. on the 15th of every month.

b. when the moon is directly opposite the position of the sun.

c. when the moon is at right angles to the direction of the sun.

d. when the moon is closer to the sun than the earth is

3. the new moon always occurs

a. on the 1st of every month

b. when the moon is closer to the sun than the earth is.

c. when the moon is directly opposite the position of the sun.

d. when the moon is at right angles to the direction of the sun.