Question 22 Answer and Explanation _ACT OG1 Form 1MC Science Section

22. Atmospheric boundaries are at a higher than usual altitude above areas that get more direct solar radiation. Based on this information and the data provided, which of the following predictions about atmospheric boundaries would most likely be true if Earth received less solar radiation than it presently does?

F. The tropopause, stratopause, and mesopause would all increase in altitude.

G. The tropopause, stratopause, and mesopause would all decrease in altitude.

H. The tropopause and stratopause would increase in altitude, but the mesopause would decrease in altitude.

J. The tropopause would decrease in altitude, but the stratopause and mesopause would increase in altitude.

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

It can be seen from the question stem that if the solar radiation received is enhanced, the altitude of the dividing line of the layers will be higher than usual. Because all layers of the atmosphere are affected by solar radiation, and now there is less solar radiation, the elevation of all boundaries is reduced