Hello and good morning!
your answer will be:
A Terrestrial Planet is: A terrestrial planet, telluric planet, or rocky planet is aplanet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e Mercury, Venus, Earth, and Mars.
A Gas Giant Is: a large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune.
Hope I helped!
~Tomas
