Choose the correct option.
Statement 1: The shape of the moon changes every day and the various shapes seen during a month are called phases of the moon.
Statement 2: Moon has no light of its own. We see only that part of the moon, which reflects light of the sun to us. The position of moon changes due to its revolution around the earth and hence, the portion of the moon reflecting the light of the sun to us also changes.
Statement 1 is correct and statement 2 is correct explanation for it
The moon does not produce its own light, whereas the Sun and other stars do. We see the moon because the sunlight falling on the moon gets reflected towards us. The position of the moon changes due to its revolution around the earth and hence the portion of moon reflecting sunlight towards us changes. It takes approximately one month for moon to complete one revolution around the earth. So after one month, the shapes of moon are repeated.