According to recent estimates, 50% of the population adheres to Christianity, Islam 48%, while 2% of the population follows other religions including traditional African religion and animism. According to a study made by Pew Research Center, 63% adheres to Christianity and 36% adheres to Islam. Since May 2002, the government of Eritrea has officially recognized the Eritrean Orthodox Tewahedo Church (Oriental Orthodox), Sunni Islam, the Eritrean Catholic Church (a Metropolitanate sui juris) and the Evangelical Lutheran church. All other faiths and denominations are required to undergo a registration process. Among other things, the government's registration system requires religious groups to submit personal information on their membership to be allowed to worship.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): As of May 2002 what percentage of Eritrean people were in the Evangelical Lutheran church?
Ah, so.. unanswerable

Groove recordings, first designed in the final quarter of the 19th century, held a predominant position for nearly a centurywithstanding competition from reel-to-reel tape, the 8-track cartridge, and the compact cassette. In 1988, the compact disc surpassed the gramophone record in unit sales. Vinyl records experienced a sudden decline in popularity between 1988 and 1991, when the major label distributors restricted their return policies, which retailers had been relying on to maintain and swap out stocks of relatively unpopular titles. First the distributors began charging retailers more for new product if they returned unsold vinyl, and then they stopped providing any credit at all for returns. Retailers, fearing they would be stuck with anything they ordered, only ordered proven, popular titles that they knew would sell, and devoted more shelf space to CDs and cassettes. Record companies also deleted many vinyl titles from production and distribution, further undermining the availability of the format and leading to the closure of pressing plants. This rapid decline in the availability of records accelerated the format's decline in popularity, and is seen by some as a deliberate ploy to make consumers switch to CDs, which were more profitable for the record companies.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When did compact disc popularity take hold?
Ah, so.. 1988

To the north of Africa the Tethys Sea continued to narrow. Broad shallow seas advanced across central North America (the Western Interior Seaway) and Europe, then receded late in the period, leaving thick marine deposits sandwiched between coal beds. At the peak of the Cretaceous transgression, one-third of Earth's present land area was submerged. The Cretaceous is justly famous for its chalk; indeed, more chalk formed in the Cretaceous than in any other period in the Phanerozoic. Mid-ocean ridge activityor rather, the circulation of seawater through the enlarged ridgesenriched the oceans in calcium; this made the oceans more saturated, as well as increased the bioavailability of the element for calcareous nanoplankton. These widespread carbonates and other sedimentary deposits make the Cretaceous rock record especially fine. Famous formations from North America include the rich marine fossils of Kansas's Smoky Hill Chalk Member and the terrestrial fauna of the late Cretaceous Hell Creek Formation. Other important Cretaceous exposures occur in Europe and China. In the area that is now India, massive lava beds called the Deccan Traps were laid down in the very late Cretaceous and early Paleocene.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Early in what period did the sea recede across central North America?
Ah, so..
unanswerable