Question

Give one reason why we can see only one side of the moon.

name the planets that are made up of solid rock material.

Answer 1

The half of the moon is always illuminated by the sun since the moon doesn't emit it's own light it reflects the sun's light so the illuminated part appears
Terrestrial planets

Answer 2

Give one reason why we can see only one side of the moon.

Answer :

Rotation and revolution of the moon around the Earth is almost same.

Name the planets that are made up of solid rock material.

Answer :

Mercury, Venus, Earth, Mars

and

outer planets that are made up of gases are

Jupiter, Saturn, Uranus, Neptune