Final answer:
A gas giant is composed of hydrogen and helium, with Jupiter being an example. The immense gravitational force of Jupiter compresses these gases into a dense core, surrounded by layers of gas.
Step-by-step explanation:
A gas giant is largely made up of hydrogen and helium. One example of a gas giant in our solar system is Jupiter. Jupiter is composed of about 75% hydrogen and 24% helium, with trace amounts of other elements. The immense gravitational force of Jupiter compresses these gases into a dense core, surrounded by layers of gas.
Learn more about Gas giants