Question: The late nineteenth century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh. Describing his painting, The Night Cafe, to his brother Theo in 1888, Van Gogh wrote: "I sought to express with red and green the terrible human passions. The hall is blood red and pale yellow, with a green billiard table in the center, and four lamps of lemon yellow, with rays of orange and green. Everywhere it is a battle and antithesis of the most different reds and greens."
Is there an answer to this question: Van Gogh said The Night Cafe was about the contrast between yellow and what color? 

Answer: unanswerable


Question: Over time, fidelity, dynamic and noise levels improved to the point that it was harder to tell the difference between a live performance in the studio and the recorded version. This was especially true after the invention of the variable reluctance magnetic pickup cartridge by General Electric in the 1940s when high quality cuts were played on well-designed audio systems. The Capehart radio/phonographs of the era with large diameter electrodynamic loudspeakers, though not ideal, demonstrated this quite well with "home recordings" readily available in the music stores for the public to buy.
Is there an answer to this question: How similar were live and recorded versions?

Answer: harder to tell the difference


Question: Avialans diversified into a wide variety of forms during the Cretaceous Period. Many groups retained primitive characteristics, such as clawed wings and teeth, though the latter were lost independently in a number of avialan groups, including modern birds (Aves). While the earliest forms, such as Archaeopteryx and Jeholornis, retained the long bony tails of their ancestors, the tails of more advanced avialans were shortened with the advent of the pygostyle bone in the group Pygostylia. In the late Cretaceous, around 95 million years ago, the ancestor of all modern birds also evolved a better sense of smell.
Is there an answer to this question: During which time period did avialans diversify into a wide variety of forms?

Answer: Cretaceous Period


Question: Football gameday traditions During home games, activities occur all around campus and different dorms decorate their halls with a traditional item (e.g. Zahm House's two-story banner). Traditional activities begin at the stroke of midnight with the Drummers' Circle. This tradition involves the drum line of the Band of the Fighting Irish and ushers in the rest of the festivities that will continue the rest of the gameday Saturday. Later that day, the trumpet section will play the Notre Dame Victory March and the Notre Dame Alma Mater under the dome. The band entire will play a concert at the steps of Bond Hall, from where they will march into Notre Dame Stadium, leading fans and students alike across campus to the game.
Is there an answer to this question: From where does the Band of the Fighting Irish lead a march to the Notre Dame Stadium for football home games?

Answer:
the steps of Bond Hall