Based on information discussed previously in the course, you know that average temperatures in the troposphere ________ with $\underline { \text { increasing } }$ elevation because the atmosphere is heated ________.
A) increase; from the top-down by insolation
B) increase; from the top-down by energy emitted from the stratosphere
C) decrease; from the bottom-up by reflected insolation
D) decrease; from the bottom-up by terrestrial infrared energy

Question

Based on information discussed previously in the course, you know that average temperatures in the troposphere ________ with $\underline {  \text { increasing }  }$ elevation because the atmosphere is heated ________.
A) increase; from the top-down by insolation
B) increase; from the top-down by energy emitted from the stratosphere
C) decrease; from the bottom-up by reflected insolation
D) decrease; from the bottom-up by terrestrial infrared energy

Quizplus · Accepted Answer

The question is asking for the relationship between temperature and elevation in the troposphere. The troposphere is heated from the Earth's surface, so temperatures decrease with increasing elevation due to the decrease in pressure, and the atmosphere is thinner with fewer heat-trapping molecules. Choice A is incorrect because insolation (incoming solar radiation) heats the Earth's surface and then the troposphere from the bottom-up, not the top-down. Choice B is incorrect because the stratosphere is above the troposphere and does not directly heat it. Choice C is incorrect because reflected insolation would contribute to heating the Earth's surface, but would not directly heat the troposphere.

Based on Information Discussed Previously in the Course, You Know increasing ‾\underline { \text { increasing } } increasing ​

Based on Information Discussed Previously in the Course, You Know $\underline { \text { increasing } }$