Passage IV
Certain layers of Earth’s atmosphere absorb particular wavelengths of solar radiation while letting others pass through. Types of solar radiation include X rays, ultraviolet light, visible light, and infrared radiation. The cross section of Earth’s atmosphere below illustrates the altitudes at which certain wavelengths are absorbed. The arrows point to the altitudes at which solar radiation of different ranges of wavelengths is absorbed. The figure also indicates the layers of the atmosphere and how atmospheric density, pressure, and temperature vary with altitude.
18. According to the data provided, at what altitude is the upper boundary of the thermosphere located?
Your Answer is
Correct Answer is J
Explanation
On the far right of the figure, you can see the boundaries of the layers. The thermosphere does not show the upper limit