I mean have you if you’ve had to ask yourself that probably means no unless you live in Africa and don’t know it
Answer:
Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.
Explanation:
<span>This is possible because Pierre-Jules-CĂ©sar Janssen, A french Astronomer, Discovered a thin yellow line while studying a total solar eclipse. The spectral lines in this thin yellow line was the same as excited helium molecules.</span>