QUES: The classification of speech varieties as dialects or languages and their relationship to other varieties of speech can be controversial and the verdicts inconsistent. English and Serbo-Croatian illustrate the point. English and Serbo-Croatian each have two major variants (British and American English, and Serbian and Croatian, respectively), along with numerous other varieties. For political reasons, analyzing these varieties as "languages" or "dialects" yields inconsistent results: British and American English, spoken by close political and military allies, are almost universally regarded as dialects of a single language, whereas the standard languages of Serbia and Croatia, which differ from each other to a similar extent as the dialects of English, are being treated by some linguists from the region as distinct languages, largely because the two countries oscillate from being brotherly to being bitter enemies. (The Serbo-Croatian language article deals with this topic much more fully.)

Serbian and American English are the major variants of which language?
What is the answer?
ANS: unanswerable
QUES: In 2004, the Swaziland government acknowledged for the first time that it suffered an AIDS crisis, with 38.8% of tested pregnant women infected with HIV (see AIDS in Africa). The then Prime Minister Themba Dlamini declared a humanitarian crisis due to the combined effect of drought, land degradation, increased poverty, and HIV/AIDS. According to the 2011 UNAIDS Report, Swaziland is close to achieving universal access to HIV/AIDS treatment, defined as 80% coverage or greater. Estimates of treatment coverage range from 70% to 80% of those infected. Life expectancy had fallen from 61 years in 2000 to 32 years in 2009. Tuberculosis is also a significant problem, with an 18% mortality rate. Many patients have a multi-drug resistant strain, and 83% are co-infected with HIV.

What does UNAIDS consider universal access to HIV/AIDS treatment?
What is the answer?
ANS: 80% coverage or greater
QUES: The ability of bacteria to degrade a variety of organic compounds is remarkable and has been used in waste processing and bioremediation. Bacteria capable of digesting the hydrocarbons in petroleum are often used to clean up oil spills. Fertilizer was added to some of the beaches in Prince William Sound in an attempt to promote the growth of these naturally occurring bacteria after the 1989 Exxon Valdez oil spill. These efforts were effective on beaches that were not too thickly covered in oil. Bacteria are also used for the bioremediation of industrial toxic wastes. In the chemical industry, bacteria are most important in the production of enantiomerically pure chemicals for use as pharmaceuticals or agrichemicals.

What quality of bacteria is being widely used re-cyling?
What is the answer?
ANS:
ability of bacteria to degrade a variety of organic compounds