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11 Aug 2023, 04:00
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
79% (01:45) correct
21%
(02:12)
wrong
based on 1064
sessions
History
Date
Time
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Not Attempted Yet
Archaeologists using a remote-controlled submarine to excavate an ancient shipwreck deep in the Mediterranean have been able to recover several objects from the site of the wreck. By chemically dating the ship's timbers and examining other objects, such as coins, the archaeologists estimated that the ship was wrecked in the fifth century A.D. However, the submarine has also recovered from the site some large olive oil jars that cannot be from before the eighth century A.D.
Which of the following, if true, provides the strongest basis for explaining the apparent discrepancy in the dates cited?
A. The dating procedure used on the ship's timbers is accurate only to within about 50 years before or after the date the procedure identifies.
B. Cameras on the submarine that have enabled archaeologists to map the site of the wreck have provided no evidence of other wrecks in the immediate vicinity.
C. Chemical dating indicated that the timbers from which the ship was constructed were all about the same age.
D. Since the beginning of maritime trade on the Mediterranean, sailors on ships endangered by storms there have lightened their ships by jettisoning cargo.
E. Seals on the olive oil jars indicate that the jars came from the same region as that from which the coins originated.
Which of the following, if true, provides the strongest basis for explaining the apparent discrepancy in the dates cited?
A. The dating procedure used on the ship's timbers is accurate only to within about 50 years before or after the date the procedure identifies.
B. Cameras on the submarine that have enabled archaeologists to map the site of the wreck have provided no evidence of other wrecks in the immediate vicinity.
C. Chemical dating indicated that the timbers from which the ship was constructed were all about the same age.
D. Since the beginning of maritime trade on the Mediterranean, sailors on ships endangered by storms there have lightened their ships by jettisoning cargo.
E. Seals on the olive oil jars indicate that the jars came from the same region as that from which the coins originated.
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25 Aug 2023, 08:44
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Archaeologists using a remote-controlled submarine to excavate an ancient shipwreck deep in the Mediterranean have been able to recover several objects from the site of the wreck. By chemically dating the ship's timbers and examining other objects, such as coins, the archaeologists estimated that the ship was wrecked in the fifth century A.D. However, the submarine has also recovered from the site some large olive oil jars that cannot be from before the eighth century A.D.
Which of the following, if true, provides the strongest basis for explaining the apparent discrepancy in the dates cited?
The question asks us to find the choice that best explains "the apparent discrepancy in the dates cited."
Reviewing the passage, we see that the discrepancy is that evidence indicates that the ship was wrecked in the fifth century (between 401 and 500 AD), but olive oil jars found on the site of the shipwreck cannot be from before the eighth century (701 - 800 AD).
A. The dating procedure used on the ship's timbers is accurate only to within about 50 years before or after the date the procedure identifies.
Notice that the minimum difference between the estimated time of the shipwreck and the time the jars were from is 701 - 500 or about 200 years. So, even if the archeologists' estimated date of the shipwreck is 50 years off and the shipwreck occurred in 550 AD, there's still no way the shipwreck occurred during the time the jars are from.
So, this choice doesn't explain the discrepancy.
Eliminate.
B. Cameras on the submarine that have enabled archaeologists to map the site of the wreck have provided no evidence of other wrecks in the immediate vicinity.
This choice doesn't explain the discrepancy. Instead it serves to rule out a possible explanation for the discrepancy, that the olive oil jars are from another wreck that occurred nearby.
So, this choice basically deepens the mystery of the discrepancy.
Eliminate.
C. Chemical dating indicated that the timbers from which the ship was constructed were all about the same age.
This choice basically just confirms the discrepancy that the correct answer must explain. In other words, the fact that the timbers were all about the same age means that all the timbers are from a time long before the time the olive oil jars are from.
D. Since the beginning of maritime trade on the Mediterranean, sailors on ships endangered by storms there have lightened their ships by jettisoning cargo.
This choice explains the discrepancy by indicating that the olive oil jars likely do not have anything to do with the shipwreck discovered by the archeologists and simply have a different origin.
After all, given what this choice says, the olive oil jars could be cargo that was jettisoned (thrown overboard) by sailors on a ship that was sailing long after the shipwreck occurred who wanted to lighten that ship because of a storm.
Keep.
E. Seals on the olive oil jars indicate that the jars came from the same region as that from which the coins originated.
The fact that this evidence, seals, indicates that the jars and the coins came from the same place does not change the fact that the coins and the jars appear to be from different times.
Regardless of where the coins and the jars came from, we are still faced with the discrepancy between the time of the shipwreck and the time the jars are from, and this choice does not explain that discrepancy since the fact that the coins and jars are from the same place does not explain how they could be from different times.
Eliminate.
The correct answer is (D).
Which of the following, if true, provides the strongest basis for explaining the apparent discrepancy in the dates cited?
The question asks us to find the choice that best explains "the apparent discrepancy in the dates cited."
Reviewing the passage, we see that the discrepancy is that evidence indicates that the ship was wrecked in the fifth century (between 401 and 500 AD), but olive oil jars found on the site of the shipwreck cannot be from before the eighth century (701 - 800 AD).
A. The dating procedure used on the ship's timbers is accurate only to within about 50 years before or after the date the procedure identifies.
Notice that the minimum difference between the estimated time of the shipwreck and the time the jars were from is 701 - 500 or about 200 years. So, even if the archeologists' estimated date of the shipwreck is 50 years off and the shipwreck occurred in 550 AD, there's still no way the shipwreck occurred during the time the jars are from.
So, this choice doesn't explain the discrepancy.
Eliminate.
B. Cameras on the submarine that have enabled archaeologists to map the site of the wreck have provided no evidence of other wrecks in the immediate vicinity.
This choice doesn't explain the discrepancy. Instead it serves to rule out a possible explanation for the discrepancy, that the olive oil jars are from another wreck that occurred nearby.
So, this choice basically deepens the mystery of the discrepancy.
Eliminate.
C. Chemical dating indicated that the timbers from which the ship was constructed were all about the same age.
This choice basically just confirms the discrepancy that the correct answer must explain. In other words, the fact that the timbers were all about the same age means that all the timbers are from a time long before the time the olive oil jars are from.
D. Since the beginning of maritime trade on the Mediterranean, sailors on ships endangered by storms there have lightened their ships by jettisoning cargo.
This choice explains the discrepancy by indicating that the olive oil jars likely do not have anything to do with the shipwreck discovered by the archeologists and simply have a different origin.
After all, given what this choice says, the olive oil jars could be cargo that was jettisoned (thrown overboard) by sailors on a ship that was sailing long after the shipwreck occurred who wanted to lighten that ship because of a storm.
Keep.
E. Seals on the olive oil jars indicate that the jars came from the same region as that from which the coins originated.
The fact that this evidence, seals, indicates that the jars and the coins came from the same place does not change the fact that the coins and the jars appear to be from different times.
Regardless of where the coins and the jars came from, we are still faced with the discrepancy between the time of the shipwreck and the time the jars are from, and this choice does not explain that discrepancy since the fact that the coins and jars are from the same place does not explain how they could be from different times.
Eliminate.
The correct answer is (D).
General Discussion
11 Aug 2023, 04:26
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IMO D
D. Since the beginning of maritime trade on the Mediterranean, sailors on ships endangered by storms there have lightened their ships by jettisoning cargo.
D. Since the beginning of maritime trade on the Mediterranean, sailors on ships endangered by storms there have lightened their ships by jettisoning cargo.
