Question

there was a full moon on day first of the month on day 10 i cannot see the moon in the sky why​

Answer 1

because of the rotation of the eart on its own axis

Answer 2

For the moon to be visible during the day, it must be up in the sky at the same time as the sun, but not so close to the sun in the sky that you can't see it. The full moon rises at sunset, is up all night, and sets at sunrise, so you can't see a full moon in the daytime