Article: The ISO 216 system used in most other countries is based on the surface area of a sheet of paper, not on a sheet's width and length. It was first adopted in Germany in 1922 and generally spread as nations adopted the metric system. The largest standard size paper is A0 (A zero), measuring one square meter (approx. 1189 × 841 mm). Two sheets of A1, placed upright side by side fit exactly into one sheet of A0 laid on its side. Similarly, two sheets of A2 fit into one sheet of A1 and so forth. Common sizes used in the office and the home are A4 and A3 (A3 is the size of two A4 sheets).

Question: What is the lowest numbered A paper that is commonly used at home?
Ans: A3


Here is a question about this article: The Han-era Chinese sailed in a variety of ships differing from those of previous eras, such as the tower ship. The junk design was developed and realized during Han. Junks featured a square-ended bow and stern, a flat-bottomed hull or carvel-shaped hull with no keel or sternpost, and solid transverse bulkheads in the place of structural ribs found in Western vessels. Moreover, Han ships were the first in the world to be steered using a rudder at the stern, in contrast to the simpler steering oar used for riverine transport, allowing them to sail on the high seas.
What is the answer to this question: What type of transport was the steering oar most likely to be used during?
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So... riverine transport


The problem: Answer a question about this article:
Funeral and commemorative rites varied according to wealth, status and religious context. In Cicero's time, the better-off sacrificed a sow at the funeral pyre before cremation. The dead consumed their portion in the flames of the pyre, Ceres her portion through the flame of her altar, and the family at the site of the cremation. For the less well-off, inhumation with "a libation of wine, incense, and fruit or crops was sufficient". Ceres functioned as an intermediary between the realms of the living and the dead: the deceased had not yet fully passed to the world of the dead and could share a last meal with the living. The ashes (or body) were entombed or buried. On the eighth day of mourning, the family offered further sacrifice, this time on the ground; the shade of the departed was assumed to have passed entirely into the underworld. They had become one of the di Manes, who were collectively celebrated and appeased at the Parentalia, a multi-day festival of remembrance in February.
What type of rites varied in accordance with status and religion?
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The answer: Funeral and commemorative


Problem: Please answer a question about the following article about Han dynasty:
The Han-era Chinese used bronze and iron to make a range of weapons, culinary tools, carpenters' tools and domestic wares. A significant product of these improved iron-smelting techniques was the manufacture of new agricultural tools. The three-legged iron seed drill, invented by the 2nd century BC, enabled farmers to carefully plant crops in rows instead of casting seeds out by hand. The heavy moldboard iron plow, also invented during the Han dynasty, required only one man to control it, two oxen to pull it. It had three plowshares, a seed box for the drills, a tool which turned down the soil and could sow roughly 45,730 m2 (11.3 acres) of land in a single day.
What methodology allowed the production of new agricultural tools?
A: improved iron-smelting techniques


Question: Read this and answer the question

Its average annual temperature is 18.4 °C (65.1 °F). 22.8 °C (73.0 °F) during the day and 13.8 °C (56.8 °F) at night. In the coldest month – January, the maximum temperature typically during the day ranges from 13 to 21 °C (55 to 70 °F), the minimum temperature typically at night ranges from 4 to 12 °C (39 to 54 °F). In the warmest month – August, the maximum temperature during the day typically ranges from 28–34 °C (82–93 °F), about 23 °C (73 °F) at night. Generally, temperatures similar to those experienced in the northern part of Europe in summer last about 8 months, from April to November. March is transitional, the temperature often exceeds 20 °C (68 °F), with an average temperature of 19.0 °C (66 °F) during the day and 10.0 °C (50 °F) at night. December, January and February are the coldest months, with average temperatures around 17 °C (63 °F) during the day and 7 °C (45 °F) at night. Valencia has one of the mildest winters in Europe, owing to its southern location on the Mediterranean Sea and the Foehn phenomenon. The January average is comparable to temperatures expected for May and September in the major cities of northern Europe.

What is Valencia's average yearly temperature?
Answer: 18.4 °C


In the first 200 years that black people were in the United States, they primarily identified themselves by their specific ethnic group (closely allied to language) and not by skin color. Individuals identified themselves, for example, as Ashanti, Igbo, Bakongo, or Wolof. However, when the first captives were brought to the Americas, they were often combined with other groups from West Africa, and individual ethnic affiliations were not generally acknowledged by English colonists. In areas of the Upper South, different ethnic groups were brought together. This is significant as the captives came from a vast geographic region: the West African coastline stretching from Senegal to Angola and in some cases from the south-east coast such as Mozambique. A new African-American identity and culture was born that incorporated elements of the various ethnic groups and of European cultural heritage, resulting in fusions such as the Black church and Black English. This new identity was based on provenance and slave status rather than membership in any one ethnic group.[citation needed] By contrast, slave records from Louisiana show that the French and Spanish colonists recorded more complete identities of the West Africans, including ethnicities and given tribal names.
Which colonists recorded more complete identities of the West Africans?
French and Spanish colonists