Final answer:
The layer of the Earth's atmosphere approximately 30-54 miles above surface is known as the mesosphere. This layer is above the stratosphere and below the thermosphere, where temperature decreases as altitude increases, and it's where most meteors burn up upon atmospheric entry.
Step-by-step explanation:
The uppermost layer of the Earth's atmosphere, approximately 30-54 miles (48-87 kilometers) above the surface, is known as the mesosphere.
The Earth's atmosphere consists of several layers - the troposphere, the stratosphere, the mesosphere, the thermosphere, and the exosphere. The troposphere is the nearest to the Earth's surface, and is where most weather events originate. Thereafter, we find the stratosphere, extending up to about 50 kilometers. As we rise further, we find the mesosphere. The mesosphere is known for decreasing temperatures as the altitude increases.
The mesosphere extends from about 50–80 km above sea level. This layer is above the stratosphere and below the thermosphere. In this layer, temperature decreases as altitude increases. This is also the layer where most meteors burn up upon entering the atmosphere.
It's important that when studying atmospheric science, we recognize and understand the significance of these layers as they each hold unique and significant characteristics pertaining to our planet's weather, climate, and even the protection of life on Earth.
Learn more about Atmospheric Layers