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.
20. The information provided in the figure indicates that the air temperature in the troposphere is LEAST likely to be influenced by which of the following wavelengths of energy?
Your Answer is
Correct Answer is F
Explanation
From the temperature curve in the middle part of the figure, it can be seen that the slope of the thermosphere curve is the smallest. So only the 1-2000 A radiation that hits the thermosphere has the least effect on the temperature.