Final answer:
The statement is true. The four largest planets in our solar system are composed mainly of gas or ice.
Step-by-step explanation:
The statement about the four largest planets being made mainly of gas or ice is true.
Jupiter and Saturn are gas giants, meaning they are composed primarily of hydrogen and helium gases. Uranus and Neptune are ice giants, meaning they are composed mainly of various ices, such as water, ammonia, and methane.
Therefore, the four largest planets in our solar system are indeed made mainly of gas or ice.
Learn more about Composition of the largest planets in the solar system