Respuesta :
The blanket of gas on the surface of a planet or satellite. Note: The atmosphere of the Earth is roughly eighty percent nitrogen and twenty percent oxygen, with traces of other gases. (See ionosphere, stratosphere, and troposphere.)
90. One of the main components of Earth's interdependent physical systems is the atmosphere. An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.
#Sampad's Fan
