GRE GRE Certifications GRE-TEST Questions & Answers

• Question 391:

  In a competition, a certain contestant scored either 2 points or 4 points in each round of the competition. This contestant's average (arithmetic mean) score for the entire competition was 3.8 points per round.

  

  A. Quantity A is greater.

  B. Quantity B is greater.

  C. The two quantities arc equal.

  D. The relationship cannot be determined from the information given.

  Correct Answer: C

• Question 392:

  Exhibit.

  

  Which of the following is closest to the average rate of change, in tonnes per year, for maize production from 2012 to 2017 ?

  A. 20 million

  B. 19 million

  C. 18 million

  D. 17 million

  E. 16 million

  Correct Answer: A

• Question 393:

  Carbon dating of charcoal gathered from a Nok iron smelter at Intini. Nigeria, suggests thai iron technology was established there by 410 B.C. This may not be the oldest smelter in sub-Saharan Africa, however. Archaeologists have located evidence of iron-smelting in the Termit Hills of Niger from as early as 1400 B.C.. but skeptics say the wood used for that dating could have already been centuries old when burned as fuel--a problem that dogs carbon dating, especially in arid places like Niger, where wood desiccates and lasts longer. Of course, the same problem could distort dates for the Intini furnace as well, but here there is an important piece of corroborating evidence: Nok pottery found inside the furnace alongside the charcoal

  The passage is primarily concerned with

  A. determining which of two ancient cultures in sub-Saharan Africa was more technologically advanced

  B. dating the development of iron technology in sub-Saharan Africa

  C. assessing certain advantages and disadvantages of carbon dating in sub-Saharan Africa

  D. suggesting a possible link between climate and technological development in sub- Saharan Africa

  E. contrasting the iron-smelting techniques of two civilizations in sub-Saharan Africa

  Correct Answer: B

• Question 394:

  Because they require abstraction and generalization, many theories end up_________practical relevance as they tail to capture the richness and complexity of phenomena encountered in real settings.

  A. lacking

  B. enshrining

  C. elevating

  D. repudiating

  E. wanting

  F. supplanting

  Correct Answer: AD

• Question 395:

  Carbon dating of charcoal gathered from a Nok iron smelter at Intime. Nigeria, suggests that iron technology was established there by 410 B.C. This may not be the oldest smelter in sub-Saharan Africa, however. Archaeologists have located evidence of iron-smelting in the Termite Hills of Niger from as early as 1400 B.C.. but skeptics say the wood used for that dating could have already been centuries old when burned as fuel--a problem that dogs carbon dating, especially in arid places like Niger, where wood desiccates and lasts longer. Of course, the same problem could distort dates for the Intime furnace as well, but here there is an important piece of corroborating evidence: Nok pottery found inside the furnace alongside the charcoal.

  The author implies which of the following about the "Nok pottery found inside the furnace"?

  A. It provides independent support for the results of the carbon dating of the charcoal.

  B. It was probably imported to Intini from a less arid climate.

  C. It predates the pottery found in the Termit Mills of Niger.

  D. It indicates that the furnace was used primarily for purposes other than smelting.

  E. It contains traces of iron smelted in the same furnace.

  Correct Answer: A