Question

why do lunar and solar eclipses not happen every month?
eclipses only occur during full and new moons.
earth rotates around its axis faster than the moon.
the moon and earth only travel through the penumbras.
the tilt of the moons axis does not allow for monthly alignment.

Explanation:

Solar and lunar eclipses require precise alignment of the Sun, Earth, and Moon. The moon's orbit is tilted about 5 degrees relative to Earth's orbit around the Sun. This tilt means that the three - body alignment needed for an eclipse (new moon for solar, full moon for lunar) doesn't happen every month.

Answer:

D. The tilt of the moon's axis does not allow for monthly alignment.