The height of Earth's atmosphere can vary depending on how you define its boundaries. The atmosphere extends outward from the Earth's surface, gradually thinning as altitude increases. There are several commonly recognized layers of the atmosphere, including the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Here are some approximate height ranges for these layers:
Troposphere: This is the lowest layer of the atmosphere, where weather occurs. It extends from the Earth's surface up to an average height of about 7 miles (11 kilometers) at the poles and around 12 miles (19 kilometers) at the equator.
Stratosphere: The stratosphere is located above the troposphere. It extends from the top of the troposphere to an altitude of approximately 31 miles (50 kilometers).
Mesosphere: Above the stratosphere is the mesosphere, which reaches up to around 53 miles (85 kilometers) in altitude.
Thermosphere: The thermosphere is the layer above the mesosphere and extends up to an altitude of approximately 372 miles (600 kilometers).
Exosphere: The exosphere is the outermost layer of the atmosphere. It gradually merges with the vacuum of space and does not have a well-defined upper boundary. Its altitude can extend from about 372 miles (600 kilometers) to several thousand miles above the Earth's surface.
It's important to note that these values are approximate and can vary depending on factors such as latitude, time of year, and other atmospheric conditions.