Input: Article: The development of writing enabled knowledge to be stored and communicated across generations with much greater fidelity. Combined with the development of agriculture, which allowed for a surplus of food, it became possible for early civilizations to develop, because more time and effort could be devoted to tasks (other than food production) than hunter-gatherers or early subsistence farmers had available. This surplus allowed a community to support individuals who did things other than work towards bare survival. These other tasks included systematic studies of nature, study of written information gathered and recorded by others, and often of adding to that body of information.

Now answer this question: What advancement aided in spreading knowledge across generations?

Output: The development of writing


Article: In the early 21st century, Republican voters control most of the state, especially in the more rural and suburban areas outside of the cities; Democratic strength is mostly confined to the urban cores of the four major cities, and is particularly strong in the cities of Nashville and Memphis. The latter area includes a large African-American population. Historically, Republicans had their greatest strength in East Tennessee before the 1960s. Tennessee's 1st and 2nd congressional districts, based in the Tri-Cities and Knoxville, respectively, are among the few historically Republican districts in the South. Those districts' residents supported the Union over the Confederacy during the Civil War; they identified with the GOP after the war and have stayed with that party ever since. The 1st has been in Republican hands continuously since 1881, and Republicans (or their antecedents) have held it for all but four years since 1859. The 2nd has been held continuously by Republicans or their antecedents since 1859.

Question: Which Tennessee city has the largest African-American population?
Ans: Memphis


Here is a question about this article: The first Confederate soldier to be killed in the Civil War was Private Henry Wyatt from North Carolina, in the Battle of Big Bethel in June 1861. At the Battle of Gettysburg in July 1863, the 26th North Carolina Regiment participated in Pickett/Pettigrew's Charge and advanced the farthest into the Northern lines of any Confederate regiment. During the Battle of Chickamauga, the 58th North Carolina Regiment advanced farther than any other regiment on Snodgrass Hill to push back the remaining Union forces from the battlefield. At Appomattox Court House in Virginia in April 1865, the 75th North Carolina Regiment, a cavalry unit, fired the last shots of the Confederate Army of Northern Virginia in the Civil War. For many years, North Carolinians proudly boasted that they had been "First at Bethel, Farthest at Gettysburg and Chickamauga, and Last at Appomattox."
What is the answer to this question: Who was the first confederate soldier to be killed in the civil war?
****
So... Private Henry Wyatt


The problem: Answer a question about this article:
The forests play a vital role in harbouring more than 45,000 floral and 81,000 faunal species of which 5150 floral and 1837 faunal species are endemic. Plant and animal species confined to a specific geographical area are called endemic species. In reserved forests, rights to activities like hunting and grazing are sometimes given to communities living on the fringes of the forest, who sustain their livelihood partially or wholly from forest resources or products. The unclassed forests covers 6.4 percent of the total forest area and they are marked by the following characteristics:
What plays a vital role in harbouring floral and faunal species?
****
The answer: The forests


Problem: Please answer a question about the following article about Sumer:
According to Archibald Sayce, the primitive pictograms of the early Sumerian (i.e. Uruk) era suggest that "Stone was scarce, but was already cut into blocks and seals. Brick was the ordinary building material, and with it cities, forts, temples and houses were constructed. The city was provided with towers and stood on an artificial platform; the house also had a tower-like appearance. It was provided with a door which turned on a hinge, and could be opened with a sort of key; the city gate was on a larger scale, and seems to have been double. The foundation stones — or rather bricks — of a house were consecrated by certain objects that were deposited under them."
How did the Sumerians fashion the stone they cut?
A: into blocks and seals


Question: Read this and answer the question

The simplest method, used for small-scale production and often by hobbyists, is immersion etching, in which the board is submerged in etching solution such as ferric chloride. Compared with methods used for mass production, the etching time is long. Heat and agitation can be applied to the bath to speed the etching rate. In bubble etching, air is passed through the etchant bath to agitate the solution and speed up etching. Splash etching uses a motor-driven paddle to splash boards with etchant; the process has become commercially obsolete since it is not as fast as spray etching. In spray etching, the etchant solution is distributed over the boards by nozzles, and recirculated by pumps. Adjustment of the nozzle pattern, flow rate, temperature, and etchant composition gives predictable control of etching rates and high production rates.

What funny name is used for the etching process where air is blown through the etching solution to get it moving around?
Answer:
bubble etching