How do outer planets differ from inner planets? (1 point)

COURSE TOOLS
• They are smaller than the inner planets.
• They consist of a mixture of gases and liquid.
• They are not different from inner planets
• They have very large solid surfaces

• They consist of a mixture of gases and liquid.

To determine how outer planets differ from inner planets, you can consider the given options and evaluate their accuracy.

The first option states that outer planets are smaller than inner planets. This statement is not entirely accurate because some outer planets, such as Jupiter and Saturn, are significantly larger than inner planets like Earth and Mars. Hence, this option is incorrect.

The second option suggests that outer planets consist of a mixture of gases and liquid. This statement is true as outer planets, also known as gas giants, primarily contain gases like hydrogen and helium. Additionally, these planets may have liquid or even metallic hydrogen interiors. Therefore, this option is correct.

The third option claims that outer planets are not different from inner planets. However, this option contradicts scientific evidence, as outer planets have unique characteristics, such as their composition, size, and formation. Thus, this option is incorrect.

The fourth option states that outer planets have very large solid surfaces. This statement is not accurate since most outer planets have relatively small or no solid surfaces. Instead, they are mainly composed of gases and do not possess a solid surface like the inner planets. Consequently, this option is incorrect.

Therefore, the correct answer is that outer planets differ from inner planets because they consist of a mixture of gases and liquid.

The correct answer is: They consist of a mixture of gases and liquid.