Question

What are the two phases during which tha moon appears as only a tiny silver

Answer 1

Those are called waxing crescent and waning crescent.

Answer 2

1. Waxing crescent
2. Waning crescent

Explanation:

Immediately after the new moon which is regularly called the waxing crescent stage. Waxing because the crescent expands in volume by age. Later the new moon is in the waning crescent phase. Waning shows that the crescent is reducing in volume each day. The words waxing and waning are similarly referred to the gibbous states between the initial quarter or immediate quarter of the full moon.