AFOQT Practice Test

Question: 1 / 400

What is the primary component of gas giants' atmospheres?

Oxygen

Hydrogen

The primary component of gas giants' atmospheres is hydrogen. Gas giants, such as Jupiter and Saturn, are characterized by their thick atmospheres which are predominantly made up of hydrogen due to their massive size and gravitational pull. This element plays a vital role in the formation and structure of these planets, allowing for the retention of significant amounts of gas that would otherwise escape into space on smaller planets.

In addition to hydrogen, gas giants also contain other gases, such as helium, but hydrogen remains the most abundant. In contrast, the other options like oxygen, carbon dioxide, and argon are present in much lesser amounts in the atmospheres of gas giants, making them less representative of their overall atmospheric composition.

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Carbon Dioxide

Argon

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