HomeAstronomyEarth's atmosphere: Facts about our planet’s protective blanket

Earth’s atmosphere: Facts about our planet’s protective blanket

Earth’s atmosphere is a thin band of air made up of numerous layers based on temperature. Without this protective blanket, life on Earth would not exist as it protects us from heat and radiation emitted from the sun and contains the air we breathe.

Though oxygen is crucial for life on Earth, it is not the primary component of our atmosphere. According to education site Vision Learning (opens in new tab) Earth’s atmosphere is composed of approximately 78 percent nitrogen, 21 percent oxygen, 0.93 percent Argon, 0.04 percent carbon dioxide as well as trace amounts of neon, helium, methane, krypton, ozone and hydrogen, as well as water vapor.

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