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Question
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Choices
Curve Question
Difficulty
Psg/Game/S
Difficulty
Explanation
PT107 S3 Q05
+LR
+Exp
Most strongly supported +MSS
Conditional Reasoning +CondR
A
98%
166
B
0%
164
C
1%
152
D
0%
162
E
0%
151
127
135
142
+Easier 148.579 +SubsectionMedium

The chances that tropical storms will develop in a given area increase whenever the temperature of a large body of water in that area exceeds 26 degrees Celsius to a depth of about 60 meters. If the amount of carbon dioxide in the Earth’s atmosphere continues to increase, the temperatures of all of the Earth’s waters will rise, with the result that the number of large bodies of water whose temperatures exceed 26 degrees Celsius to a depth of about 60 meters will eventually be greater than it is today.

Summary

If the temperature of a large body of water exceeds 26 degrees Celsius to a depth of about 60 meters, the chances increase that a tropical storm will develop. If the amount of carbon dioxide in the Earth’s atmosphere increases, all of Earth’s waters will rise, resulting in a greater number than today of large bodies of water where the temperature exceeds 26 degrees Celsius to a depth of 60 meters.

Strongly Supported Conclusions

If the amount of carbon dioxide in the Earth’s atmosphere increases, the likelihood that tropical storms develop in any given area on Earth will increase.

A
There are likely to be more tropical storms if the amount of carbon dioxide in the Earth’s atmosphere continues to increase.

This is strongly supported because we can connect the fact of more carbon dioxide increasing the likelihood of exceeding 26 degrees to a 60 meter depth with the fact of that temperature and depth combination resulting in a higher likelihood of tropical storms.

B
Tropical storms can occur only when the air temperature exceeds 26 degrees Celsius.

This is unsupported because we aren’t given any conditional statement saying that tropical storms only occur at this temperature range. Furthermore, the temperature range given refers to the water temperature, not the air temperature.

C
The number of large bodies of water whose temperatures exceed 26 degrees Celsius to a depth of about 60 meters is greater today than it ever was.

This is unsupported because we don’t know if there was ever a time in Earth’s history where carbon dioxide levels were higher than today, or if another factor besides carbon dioxide ever raised the temperatures of Earth’s waters in the past.

D
The ferocity of tropical storms does not depend on the amount of carbon dioxide in the Earth’s atmosphere.

This is unsupported because the stimulus only gives us information on the likelihood of tropical storms, not the severity of those storms.

E
Any increase in the temperatures of the Earth’s oceans would cause the amount of carbon dioxide in the atmosphere to increase as well.

This is unsupported because the stimulus indicates that the causality moves from carbon dioxide leading to higher ocean temperatures rather than the higher temperatures causing more carbon dioxide.

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