- Wed Apr 27, 2016 9:30 am
#23468
Complete Question Explanation
Must Be True-#%. The correct answer choice is (D)
In this stimulus, we are bombarded with scientific facts: In the troposphere, the lowest level of the earth's atmosphere, the temperature decreases steadily as you go up, with temperatures ranging significantly from poles to equator. In the layers of the stratosphere, which is warmed by ozone, the temperature increases steadily as you go up.
As long as we can keep the layers and their attributes distinct, we can effectively attack this Must Be True question regardless of its scientific and numerical nature.
Answer choice (A): There is no discussion of the relative thickness of the various areas of the troposphere, so this answer choice is unsupported by the information in the stimulus.
Answer choice (B): Although the author discusses the variation in temperature, no information is provided regarding this specific comparison, so this choice fails the Fact Test and is incorrect.
Answer choice (C): This answer choice is incorrect for the same reason that answer choice (B) above is incorrect: we don't have specific information to assess this comparison.
Answer choice (D): This is the correct answer choice. We know that at the point where the stratosphere begins, the temperature immediately starts to increase, so the statement provided by this answer choice must be true.
Answer choice (E): The author does not provide sufficient information in this short stimulus to allow us to assess the effect of ozone depletion on the air temperature in the troposphere and stratosphere, respectively, so this answer choice cannot be correct.
Must Be True-#%. The correct answer choice is (D)
In this stimulus, we are bombarded with scientific facts: In the troposphere, the lowest level of the earth's atmosphere, the temperature decreases steadily as you go up, with temperatures ranging significantly from poles to equator. In the layers of the stratosphere, which is warmed by ozone, the temperature increases steadily as you go up.
As long as we can keep the layers and their attributes distinct, we can effectively attack this Must Be True question regardless of its scientific and numerical nature.
Answer choice (A): There is no discussion of the relative thickness of the various areas of the troposphere, so this answer choice is unsupported by the information in the stimulus.
Answer choice (B): Although the author discusses the variation in temperature, no information is provided regarding this specific comparison, so this choice fails the Fact Test and is incorrect.
Answer choice (C): This answer choice is incorrect for the same reason that answer choice (B) above is incorrect: we don't have specific information to assess this comparison.
Answer choice (D): This is the correct answer choice. We know that at the point where the stratosphere begins, the temperature immediately starts to increase, so the statement provided by this answer choice must be true.
Answer choice (E): The author does not provide sufficient information in this short stimulus to allow us to assess the effect of ozone depletion on the air temperature in the troposphere and stratosphere, respectively, so this answer choice cannot be correct.