Problem: Please answer a question about the following article about Incandescent light bulb:
While inert gas reduces filament evaporation, it also conducts heat from the filament, thereby cooling the filament and reducing efficiency. At constant pressure and temperature, the thermal conductivity of a gas depends upon the molecular weight of the gas and the cross sectional area of the gas molecules. Higher molecular weight gasses have lower thermal conductivity, because both the molecular weight is higher and also the cross sectional area is higher. Xenon gas improves efficiency because of its high molecular weight, but is also more expensive, so its use is limited to smaller lamps.
What affects the thermal conductivity of a gas?
A: molecular weight of the gas and the cross sectional area of the gas molecules
Problem: Please answer a question about the following article about Montana:
According to the 2010 Census, 89.4 percent of the population was White (87.8 percent Non-Hispanic White), 6.3 percent American Indian and Alaska Native, 2.9 percent Hispanics and Latinos of any race, 0.6 percent Asian, 0.4 percent Black or African American, 0.1 percent Native Hawaiian and Other Pacific Islander, 0.6 percent from Some Other Race, and 2.5 percent from two or more races. The largest European ancestry groups in Montana as of 2010 are: German (27.0 percent), Irish (14.8 percent), English (12.6 percent), Norwegian (10.9 percent), French (4.7 percent) and Italian (3.4 percent).
What percent of the state is Native American Indian?
A: 6.3 percent
Problem: Please answer a question about the following article about Arena Football League:
In 2001, Jeff Foley published War on the Floor: An Average Guy Plays in the Arena Football League and Lives to Write About It. The book details a journalist's two preseasons (1999 and 2000) as an offensive specialist/writer with the now-defunct Albany Firebirds. The 5-foot-6 (170 cm), self-described "unathletic writer" played in three preseason games and had one catch for 2 yards.
In what year was War on the Floor released?
A: 2001
Problem: Please answer a question about the following article about Great power:
When World War II started in 1939, it divided the world into two alliancesthe Allies (the United Kingdom and France at first in Europe, China in Asia since 1937, followed in 1941 by the Soviet Union, the United States); and the Axis powers consisting of Germany, Italy and Japan.[nb 1] During World War II, the United States, United Kingdom, and Soviet Union controlled Allied policy and emerged as the "Big Three". The Republic of China and the Big Three were referred as a "trusteeship of the powerful" and were recognized as the Allied "Big Four" in Declaration by United Nations in 1942. These four countries were referred as the "Four Policemen" of the Allies and considered as the primary victors of World War II. The importance of France was acknowledged by their inclusion, along with the other four, in the group of countries allotted permanent seats in the United Nations Security Council.
When did World War II start?
A:
1939