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.

[Q]: Passage: The climate of Antarctica does not allow extensive vegetation to form. A combination of freezing temperatures, poor soil quality, lack of moisture, and lack of sunlight inhibit plant growth. As a result, the diversity of plant life is very low and limited in distribution. The flora of the continent largely consists of bryophytes. There are about 100 species of mosses and 25 species of liverworts, but only three species of flowering plants, all of which are found in the Antarctic Peninsula: Deschampsia antarctica (Antarctic hair grass), Colobanthus quitensis (Antarctic pearlwort) and the non-native Poa annua (annual bluegrass). Growth is restricted to a few weeks in the summer.
[A]: What allows extensive vegitation to occur?

[Q]: Passage: The best, worst and average case complexity refer to three different ways of measuring the time complexity (or any other complexity measure) of different inputs of the same size. Since some inputs of size n may be faster to solve than others, we define the following complexities:
[A]: What are the three secondary expressions used to represent case complexity?

[Q]: Passage: Orthodox Judaism holds that on Mount Sinai, the Written Law was transmitted along with an Oral Law. The words of the Torah (Pentateuch) were spoken to Moses by God; the laws contained in this Written Torah, the "Mitzvot", were given along with detailed explanations in the oral tradition as to how to apply and interpret them. Furthermore, the Oral law includes principles designed to create new rules. The Oral law is held to be transmitted with an extremely high degree of accuracy. Jewish theologians, who choose to emphasize the more evolutionary nature of the Halacha point to a famous story in the Talmud, where Moses is miraculously transported to the House of Study of Rabbi Akiva and is clearly unable to follow the ensuing discussion.
[A]:
Who holds that the Oral Law was not transmitted on Mt. Sinai?