What are some gases that can be found in the stratosphere?

Pretty much the same gases that are found at sea level, but the percentages change. Relatively more of light gases like helium, relatively less of heavy gases like argon. And lots more ozone, due to the higher levels of ionizing radiation. read more

Carbon dioxide and some other minor gases present in the atmosphere absorb some of the thermal radiation leaving the surface and emit radiation from much higher and colder levels out to space. These gases are referred to as greenhouse gases that act as a natural protective cover from the thermal radiation, known as greenhouse effect. read more

The stratosphere is a layer of the atmosphere that consists of nearly 19 percent of the atmosphere's gases, which are nitrogen, oxygen, argon and trace elements like neon and helium. The atmosphere consists of five layers, and its gas composition is 78 percent nitrogen, 21 percent oxygen and 0.9 percent argon. read more

The gases in the thermosphere, as well as in the troposphere, stratosphere, and mesosphere, consist of atomic oxygen, molecular oxygen, atomic nitrogen, molecular nitrogen, helium, and hydrogen. If you are looking for the weight of each atmospheric level and the gases within each atmospheric level, you are actually looking for the density, specifically the air density or atmospheric density. read more

Since the Karman line (which serves as the boundary between the Earth’s immediate atmosphere and outer space) is found in the lower region of the Thermosphere, much of this layer of gases in the atmosphere is considered outer space. Finally, the exosphere, being the outermost layer, is where you can find the lightest gases: hydrogen and helium. read more