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.
21. On the basis of the information in the figure, one could generalize that atmospheric pressure in each atmospheric layer increases with:
Your Answer is
Correct Answer is C
Explanation
From the left half of the figure, it can be seen that the atmospheric pressure increases with the decrease of altitude; while in different layers of the atmosphere, the relationship between air pressure and temperature has no fixed trend