This is a drawing which depicts what Jupiter's atmosphere is made of.
Click on image for full size
NASA
An Overview of Jupiter's Atmospheric Composition
Jupiter's atmosphere is mostly made of the simple molecules hydrogen and helium. There is a large amount of sulfur, which combines with some of the hydrogen to form hydrogen sulfide. There is also a large amount of nitrogen, which combines with the hydrogen to form ammonia. Oxygen is also present, which combines with the hydrogen to form water.
These molecules, ammonia, ammonia hydrosulfide, and water, form clouds at different levels in the atmosphere of Jupiter. They also form hazes of smog high up in the atmosphere.
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...moreAs on Earth, the atmosphere of Jupiter consists of a troposphere, stratosphere, mesosphere, and thermosphere. The troposphere is the region where the visible clouds are to be found. The stratosphere, as
...moreThe stratosphere of Jupiter is a region of warming as determined by infrared measurements of methane (CH4) in the region. Like the troposphere, the stratosphere is warmed by the sun, warmed by Jupiter's
...moreThe troposphere of Jupiter is where the clouds are. Clouds form in regions of strong atmospheric motion, when condensation takes place. The troposphere is the region rapidly stirred by vertical motions.
...moreOn Jupiter, the winds in the belts and zones blow first in one direction, then in the opposite direction. Wind blows east in a belt, and west in a zone. The clouds rise up in a belt, and drop down in a
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