Apologies for the incomplete response earlier. The inner planets are different from the outer planets mainly because they are comprised of rock, while the outer planets are primarily comprised of gas. Additionally, the inner planets are generally smaller in size and closer to the Sun compared to the outer planets.
so is A,B,C or D?
The correct answer is C: Comprised of rock. The inner planets, also known as terrestrial planets, are primarily composed of rock and metal. They have solid surfaces and are made up of materials such as silicates and metals. On the other hand, the outer planets, or gas giants, are mainly composed of hydrogen and helium gases, along with other compounds, and do not have solid surfaces.
