Question: The pulp papermaking process is said to have been developed in China during the early 2nd century AD, possibly as early as the year 105 A.D., by the Han court eunuch Cai Lun, although the earliest archaeological fragments of paper derive from the 2nd century BC in China. The modern pulp and paper industry is global, with China leading its production and the United States right behind it.
Try to answer this question if possible: When was the pulp wood making process developed?
Answer: unanswerable
Question: Nonvascular land plants are embryophytes that lack the vascular tissues xylem and phloem. They include mosses, liverworts and hornworts. Pteridophytic vascular plants with true xylem and phloem that reproduced by spores germinating into free-living gametophytes evolved during the Silurian period and diversified into several lineages during the late Silurian and early Devonian. Representatives of the lycopods have survived to the present day. By the end of the Devonian period, several groups, including the lycopods, sphenophylls and progymnosperms, had independently evolved "megaspory" their spores were of two distinct sizes, larger megaspores and smaller microspores. Their reduced gametophytes developed from megaspores retained within the spore-producing organs (megasporangia) of the sporophyte, a condition known as endospory. Seeds consist of an endosporic megasporangium surrounded by one or two sheathing layers (integuments). The young sporophyte develops within the seed, which on germination splits to release it. The earliest known seed plants date from the latest Devonian Famennian stage. Following the evolution of the seed habit, seed plants diversified, giving rise to a number of now-extinct groups, including seed ferns, as well as the modern gymnosperms and angiosperms. Gymnosperms produce "naked seeds" not fully enclosed in an ovary; modern representatives include conifers, cycads, Ginkgo, and Gnetales. Angiosperms produce seeds enclosed in a structure such as a carpel or an ovary. Ongoing research on the molecular phylogenetics of living plants appears to show that the angiosperms are a sister clade to the gymnosperms.
Try to answer this question if possible: What protects the young plant in the seed?
Answer: one or two sheathing layers
Question: Arsenal have appeared in a number of media "firsts". On 22 January 1927, their match at Highbury against Sheffield United was the first English League match to be broadcast live on radio. A decade later, on 16 September 1937, an exhibition match between Arsenal's first team and the reserves was the first football match in the world to be televised live. Arsenal also featured in the first edition of the BBC's Match of the Day, which screened highlights of their match against Liverpool at Anfield on 22 August 1964. BSkyB's coverage of Arsenal's January 2010 match against Manchester United was the first live public broadcast of a sports event on 3D television.
Try to answer this question if possible: Who won the match between Arsenal and Sheffield United on 22 January 1927?
Answer: unanswerable
Question: Since 1066, when Harold Godwinson and William the Conqueror were crowned, the coronations of English and British monarchs have been held there. There have been at least 16 royal weddings at the abbey since 1100. Two were of reigning monarchs (Henry I and Richard II), although, before 1919, there had been none for some 500 years.
Try to answer this question if possible: Which two reigning monarchs had funerals at the abbey?
Answer:
unanswerable