Article: Some agriculturalists also regularly hunt and gather (e.g., farming during the frost-free season and hunting during the winter). Still others in developed countries go hunting, primarily for leisure. In the Brazilian rainforest, those groups that recently did, or even continue to, rely on hunting and gathering techniques seem to have adopted this lifestyle, abandoning most agriculture, as a way to escape colonial control and as a result of the introduction of European diseases reducing their populations to levels where agriculture became difficult.[citation needed][dubious discuss]

Question: Why would they leave agricultural lifestyle?
Ans: to escape colonial control

Here is a question about this article: In the city, 24.6% of the population were under the age of 18, 10.2% from 18 to 24, 26.8% from 25 to 44, 25.8% from 45 to 64, and 12.7% who were 65 years of age or older. The median age was 36.3 years. For every 100 females there were 96.2 males. For every 100 females age 18 and over, there were 94.4 males.
What is the answer to this question: What was the median age?
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So... 36.3 years

The problem: Answer a question about this article:
Since the Industrial Revolution some two hundred years ago, the food processing industry has invented many technologies that both help keep foods fresh longer and alter the fresh state of food as they appear in nature. Cooling is the primary technology used to maintain freshness, whereas many more technologies have been invented to allow foods to last longer without becoming spoiled. These latter technologies include pasteurisation, autoclavation, drying, salting, and separation of various components, all of which appearing to alter the original nutritional contents of food. Pasteurisation and autoclavation (heating techniques) have no doubt improved the safety of many common foods, preventing epidemics of bacterial infection. But some of the (new) food processing technologies have downfalls as well.
Apart from altering the state of food, what is the other main focus in technology increases for the food processing industry?
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The answer: keep foods fresh longer

Problem: Please answer a question about the following article about Daylight saving time:
In the 1970s the US Law Enforcement Assistance Administration (LEAA) found a reduction of 10% to 13% in Washington, D.C.'s violent crime rate during DST. However, the LEAA did not filter out other factors, and it examined only two cities and found crime reductions only in one and only in some crime categories; the DOT decided it was "impossible to conclude with any confidence that comparable benefits would be found nationwide". Outdoor lighting has a marginal and sometimes even contradictory influence on crime and fear of crime.
How many cities did the LEAA study before reaching their conclusion?
A: two

Question: Read this and answer the question

Since the beginning of the study of electricity non conductive materials like glass, porcelain, paper and mica have been used as insulators. These materials some decades later were also well-suited for further use as the dielectric for the first capacitors. Paper capacitors made by sandwiching a strip of impregnated paper between strips of metal, and rolling the result into a cylinder were commonly used in the late 19century; their manufacture started in 1876, and they were used from the early 20th century as decoupling capacitors in telecommunications (telephony).

When were paper capacitors first manufactured?
Answer: in 1876

Genetic studies on Ashkenazim have been conducted to determine how much of their ancestry comes from the Levant, and how much derives from European populations. These studiesresearching both their paternal and maternal lineagespoint to a significant prevalence of ancient Levantine origins. But they have arrived at diverging conclusions regarding both the degree and the sources of their European ancestry. These diverging conclusions focus particularly on the extent of the European genetic origin observed in Ashkenazi maternal lineages.
Have studies on the genetics of the Ashkenazim come to similar or divergent conclusions regarding the degree and sources of their European ancestry?
they have arrived at diverging conclusions