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the second-lowest layer of the Earth’s Atmosphere

Stratosphere is the second-lowest layer of the Earth’s Atmosphere that goes up to 50 km.

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where temperature increases at higher altitudes

The stratosphere is a layer of atmosphere where temperature increases at higher altitudes.

the layer of the Earth’s atmosphere and less than 50 km above the Earth’s surface that is more than 10 kilometers (km)

The stratosphere is the layer of the Earth’s atmosphere that is more than 10 kilometers (km) and less than 50 km above the Earth’s surface.

the tallest freestanding observation tower in the United States - 350.2 m.

; Stratosphere is the tallest freestanding observation tower in the United States - 350.2 m.

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a layer of the atmosphere nine to 31 miles above the Earth

Stratosphere is a layer of the atmosphere nine to 31 miles above the Earth.

a layer of the atmosphere above the Troposphere

The Stratosphere is a layer of the atmosphere above the Troposphere.