Problem: Please answer a question about the following article about Hunter-gatherer:
The Archaic period in the Americas saw a changing environment featuring a warmer more arid climate and the disappearance of the last megafauna. The majority of population groups at this time were still highly mobile hunter-gatherers; but now individual groups started to focus on resources available to them locally, thus with the passage of time there is a pattern of increasing regional generalization like, the Southwest, Arctic, Poverty, Dalton and Plano traditions. This regional adaptations would become the norm, with reliance less on hunting and gathering, with a more mixed economy of small game, fish, seasonally wild vegetables and harvested plant foods.
What was there a pattern of in this period?
A: increasing regional generalization
Problem: Please answer a question about the following article about New Haven, Connecticut:
However, an analysis by the Regional Data Cooperative for Greater New Haven, Inc., has shown that due to issues of comparative denominators and other factors, such municipality-based rankings can be considered inaccurate. For example, two cities of identical population can cover widely differing land areas, making such analyses irrelevant. The research organization called for comparisons based on neighborhoods, blocks, or standard methodologies (similar to those used by Brookings, DiversityData, and other established institutions), not based on municipalities.
What constant in two cities can create disparities in analysis by way of distribution over differing land areas?
A: identical population
Problem: Please answer a question about the following article about Kievan Rus%27:
The last ruler to maintain united state was Mstislav the Great. After his death in 1132 the Kievan Rus' fell into recession and a rapid decline, and Mstislav's successor Yaropolk II of Kiev instead of focussing on the external threat of the Cumans was embroiled in conflicts with the growing power of the Novgorod Republic. In 1169, as the Kievan Rus' state was full of internal conflict, Andrei Bogolyubsky of Vladimir sacked the city of Kiev. The sack of the city fundamentally changed the perception of Kiev and was evidence of the fragmentation of the Kievan Rus'. By the end of the 12th century, the Kievan state became even further fragmented and had been divided into roughly twelve different principalities.
When did the Kievan state break up into twelve seperate principalities?
A: 12th century,
Problem: Please answer a question about the following article about Insect:
Paleoptera and Neoptera are the winged orders of insects differentiated by the presence of hardened body parts called sclerites, and in the Neoptera, muscles that allow their wings to fold flatly over the abdomen. Neoptera can further be divided into incomplete metamorphosis-based (Polyneoptera and Paraneoptera) and complete metamorphosis-based groups. It has proved difficult to clarify the relationships between the orders in Polyneoptera because of constant new findings calling for revision of the taxa. For example, the Paraneoptera have turned out to be more closely related to the Endopterygota than to the rest of the Exopterygota. The recent molecular finding that the traditional louse orders Mallophaga and Anoplura are derived from within Psocoptera has led to the new taxon Psocodea. Phasmatodea and Embiidina have been suggested to form the Eukinolabia. Mantodea, Blattodea, and Isoptera are thought to form a monophyletic group termed Dictyoptera.
Neoptera can be divided into what kind of "based" group?
A:
metamorphosis-based