On her way to school one morning, Yashika spots a pale Moon in the blue sky

Why

Bhoomi's belief comes from a real pattern: the Moon is easiest to notice at night, when the sky is dark and it is the brightest thing up there. But the Moon doesn't switch on at night. It rises and sets on its own timetable as it goes around the Earth, and that timetable shifts later by roughly 50 minutes each day. So for much of the month the Moon is above the horizon for part of the daytime too. It looks pale then because the bright blue sky washes it out, the same way a torch looks faint outdoors at noon. In the days after full moon it can often be seen in the western sky in the morning, and around half moon in the eastern sky in the afternoon. Test: for one week, look for the Moon at the same time each morning or afternoon and note where it is — you will find it on several days, and its shape will match the moon phase printed in a calendar. Yashika is right: the Moon is often up during the day; it just looks paler against the bright sky.