The decreasing of the illuminated face of the Moon (full to new) is called "waning." (The opposite, increased illuminated area, is called waxing.)
When the illuminated portion is decreasing from one night to the next, the moon is in its 'waning' phases.
This phase is called a waning moon and occurs as the moon transitions from a full moon to a new moon. The decrease is a result of the changing position of the moon in relation to the sun and Earth.
You can tell if the moon is increasing or decreasing in light by observing its shape in the sky. During a waxing moon, it will appear to be growing larger, while during a waning moon, it will appear to be shrinking. Additionally, a waxing moon will be visible in the evening, while a waning moon will be visible in the morning.
This period is known as the waning phase of the moon. During this phase, the illuminated portion of the moon visible from Earth decreases in size as it transitions from a full moon to a new moon.
A waning moon
When the illuminated portion is decreasing from one night to the next, the moon is in its 'waning' phases.
Photosphere
The moon phase you are describing is the waning gibbous phase. This occurs after the full moon and before the third quarter moon when the illuminated portion of the moon is decreasing.
This phase is called a waning moon and occurs as the moon transitions from a full moon to a new moon. The decrease is a result of the changing position of the moon in relation to the sun and Earth.
You can tell if the moon is increasing or decreasing in light by observing its shape in the sky. During a waxing moon, it will appear to be growing larger, while during a waning moon, it will appear to be shrinking. Additionally, a waxing moon will be visible in the evening, while a waning moon will be visible in the morning.
This period is known as the waning phase of the moon. During this phase, the illuminated portion of the moon visible from Earth decreases in size as it transitions from a full moon to a new moon.
A waning moon
No, typically the underwater portion of an iceberg is not bigger than the portion that is visible above water. Icebergs are known to have a larger portion underwater, but this is due to the difference in density between ice and seawater rather than the underwater portion being larger in size.
Visible light is in the portion of the electromagnetic spectrum between infrared (IR) and ultraviolet (UV) light.
The visible light spectrum (wavelengths from 380 to 700 nanometers)
Earth is visible all the time to every human being.
It's always the same moon, but the shape of the visible lighted portion changes. Whatever shape of the moon you see right now, you'll see the same shape again after 29.53 days have passed.