QUES: Just as the navigational approach would require programs to loop in order to collect records, the relational approach would require loops to collect information about any one record. Codd's solution to the necessary looping was a set-oriented language, a suggestion that would later spawn the ubiquitous SQL. Using a branch of mathematics known as tuple calculus, he demonstrated that such a system could support all the operations of normal databases (inserting, updating etc.) as well as providing a simple system for finding and returning sets of data in a single operation.
What type of physics was used to create a system to find data sets?

ANS: unanswerable

QUES: The Taliban regrouped in western Pakistan and began to unleash an insurgent-style offensive against Coalition forces in late 2002. Throughout southern and eastern Afghanistan, firefights broke out between the surging Taliban and Coalition forces. Coalition forces responded with a series of military offensives and an increase in the amount of troops in Afghanistan. In February 2010, Coalition forces launched Operation Moshtarak in southern Afghanistan along with other military offensives in the hopes that they would destroy the Taliban insurgency once and for all. Peace talks are also underway between Taliban affiliated fighters and Coalition forces. In September 2014, Afghanistan and the United States signed a security agreement, which permits United States and NATO forces to remain in Afghanistan until at least 2024. The United States and other NATO and non-NATO forces are planning to withdraw; with the Taliban claiming it has defeated the United States and NATO, and the Obama Administration viewing it as a victory. In December 2014, ISAF encasing its colors, and Resolute Support began as the NATO operation in Afghanistan. Continued United States operations within Afghanistan will continue under the name "Operation Freedom's Sentinel".
What did Afghanistan and the US sign in December 2014?

ANS: unanswerable

QUES: Anthropology is a global discipline where humanities, social, and natural sciences are forced to confront one another. Anthropology builds upon knowledge from natural sciences, including the discoveries about the origin and evolution of Homo sapiens, human physical traits, human behavior, the variations among different groups of humans, how the evolutionary past of Homo sapiens has influenced its social organization and culture, and from social sciences, including the organization of human social and cultural relations, institutions, social conflicts, etc. Early anthropology originated in Classical Greece and Persia and studied and tried to understand observable cultural diversity. As such, anthropology has been central in the development of several new (late 20th century) interdisciplinary fields such as cognitive science, global studies, and various ethnic studies.
What builds upon natural and social sciences?

ANS: Anthropology

QUES: The fiber is most often spun into yarn or thread and used to make a soft, breathable textile. The use of cotton for fabric is known to date to prehistoric times; fragments of cotton fabric dated from 5000 BC have been excavated in Mexico and the Indus Valley Civilization in Ancient India (modern-day Pakistan and some parts of India). Although cultivated since antiquity, it was the invention of the cotton gin that lowered the cost of production that led to its widespread use, and it is the most widely used natural fiber cloth in clothing today.
In what Central American country has cotton gin use been found from early times?

ANS:
unanswerable