The waning moon which is seen from the northern hemisphere is represented by the heliocentric model of the Earth-Moon-Sun system.
In the heliocentric model, the moon orbits the Earth while both the Earth and the moon orbit the sun. As the moon moves along its orbit, the relative positions of the moon, Earth and the sun change leading to the various phases of the moon, including the waning phases.
The moon is illuminated by the sun from various angles as it orbits the Earth. When the moon is on the far side of the Earth from the sun, it is in the full moon phase with the entire side facing the Earth illuminated.
As the moon continues its orbit, it moves between the Earth and the sun, entering the waning phases. During these phases, the sunlit portion of the moon that we can see from the Earth gradually decreases until it becomes a thin crescent.
Full question:
We have all noticed the monthly variation in the moon's appearance: the cycle of phases, caused by the changing angle of the sun as the moon orbits the Earth. The moon cycle begins with the waxing or growing crescent, visible in the west just after sunset. The first quarter moon is high in the sky at sunset and sets around midnight. The full moon rises at sunset and is high in the sky at midnight and finally, the third quarter moon is often surprisingly very visible in the daylit western sky long after sunrise. We know we can see the moon in the sky at night but in the sky during the day? Determine which scientific model represents the waning moon as the moon orbits Earth, as seen from the northern hemisphere