Imagine that you have been transported light years away to another planet with water-filled oceans. This distant planet has a barometric pressure of 1,000 mm Hg at sea level and air that contains 15 percent O2. Would you take in much more oxygen, much less oxygen, or about the same amount of oxygen per breath on this planet as you would on Earth?
A. much less oxygen on the distant planet
B. much more oxygen on the distant planet
C. about the same amount of oxygen as on Earth
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about earth’s atmosphere? What other information is related to the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
C. about the same amount of oxygen as on Earth
Clarify Question
What is the key concept addressed by the question?
· This question is asking you to recognize the atmospheric conditions on Earth.
What type of thinking is required?
· Analyze level:
o This is an analyze question because you have to break atmospheric gas composition and atmospheric pressure into their component pieces to understand how they function.
Gather Content
What do you already know about earth’s atmosphere? What other information is related to the question?
· Dry air on Earth is 20.95% oxygen.
· Barometric pressure at sea level on Earth is 760 mmHg.
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
· The oxygen content and atmospheric pressure of the planet in this question are not identical to the conditions found on Earth, but they are similar.
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
· Analyze level:
o Answering this question correctly depended not only on distinguishing between oxygen content and atmospheric pressure, but on your ability to analyze these conditions in a novel setting. If you got an incorrect answer, did you remember that components of the oxygen content of Earth’s atmosphere is 20.95%, or that atmospheric pressure at sea level is 760mmHg? Did you have trouble breaking down the conditions on Earth to determine the correct answer?
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