This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.
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Question: Passage: Like aluminium, copper is 100% recyclable without any loss of quality, regardless of whether it is in a raw state or contained in a manufactured product. In volume, copper is the third most recycled metal after iron and aluminium. It is estimated that 80% of the copper ever mined is still in use today. According to the International Resource Panel's Metal Stocks in Society report, the global per capita stock of copper in use in society is 35–55 kg. Much of this is in more-developed countries (140–300 kg per capita) rather than less-developed countries (30–40 kg per capita).

Answer: What percent of copper is indestructible?


Question: Passage: The origins of the Samoans are closely studied in modern research about Polynesia in various scientific disciplines such as genetics, linguistics and anthropology. Scientific research is ongoing, although a number of different theories exist; including one proposing that the Samoans originated from Austronesian predecessors during the terminal eastward Lapita expansion period from Southeast Asia and Melanesia between 2,500 and 1,500 BCE. The Samoan origins are currently being reassessed due to new scientific evidence and carbon dating findings from 2003 and onwards.

Answer: What scientific disciplines are being used to study where the Austronesian people came from?


Question: Passage: Whereas most Christians believe the gibbet on which Jesus was executed was the traditional two-beamed cross, the Jehovah's Witnesses hold the view that a single upright stake was used. The Greek and Latin words used in the earliest Christian writings are ambiguous. The Koine Greek terms used in the New Testament are stauros (σταυρός) and xylon (ξύλον). The latter means wood (a live tree, timber or an object constructed of wood); in earlier forms of Greek, the former term meant an upright stake or pole, but in Koine Greek it was used also to mean a cross. The Latin word crux was also applied to objects other than a cross.

Answer:
What terms did Jehovah's Witnesses use to describe a cross?