Question

question 15
how much of the moon does the sun illuminate at all times?
all
one - fourth
none
one - half

Explanation:

The Sun always illuminates half of the Moon due to the Moon's spherical shape and the direction - al nature of sunlight. As the Moon orbits the Earth and the Earth orbits the Sun, the portion of the illuminated half that we can see from Earth changes, creating the phases of the Moon, but the Sun always lights up half of it.

Answer:

one - half