The problem: Answer a question about this article:
As with the minerals discussed above, some vitamins are recognized as organic essential nutrients, necessary in the diet for good health. (Vitamin D is the exception: it can be synthesized in the skin, in the presence of UVB radiation.) Certain vitamin-like compounds that are recommended in the diet, such as carnitine, are thought useful for survival and health, but these are not "essential" dietary nutrients because the human body has some capacity to produce them from other compounds. Moreover, thousands of different phytochemicals have recently been discovered in food (particularly in fresh vegetables), which may have desirable properties including antioxidant activity (see below); however, experimental demonstration has been suggestive but inconclusive. Other essential nutrients that are not classified as vitamins include essential amino acids (see above), choline, essential fatty acids (see above), and the minerals discussed in the preceding section.
What has recently been discovered in the thousands, especially from examining fresh vegetables?
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The answer: phytochemicals

Problem: Please answer a question about the following article about The Blitz:
In the inter-war years and after 1940, Hugh Dowding, Air Officer Commanding Fighter Command has received credit for the defence of British air space and the failure of the Luftwaffe to achieve air superiority. However, Dowding had spent so much effort preparing day fighter defences, there was little to prevent the Germans carrying out an alternative strategy by bombing at night. When the Luftwaffe struck at British cities for the first time on 7 September 1940, a number of civic and political leaders were worried by Dowding's apparent lack of reaction to the new crisis.
Who was the Air Officer Commanding Fighter Command after 1940?
A: Hugh Dowding

Question: Read this and answer the question

George Gaylord Simpson's "Principles of Classification and a Classification of Mammals" (AMNH Bulletin v. 85, 1945) was the original source for the taxonomy listed here. Simpson laid out a systematics of mammal origins and relationships that was universally taught until the end of the 20th century. Since Simpson's classification, the paleontological record has been recalibrated, and the intervening years have seen much debate and progress concerning the theoretical underpinnings of systematization itself, partly through the new concept of cladistics. Though field work gradually made Simpson's classification outdated, it remained the closest thing to an official classification of mammals.

Which new concept has greatly taken over Simpsons much debated theoretical systematization?
Answer: cladistics

Problem: Focused by the commitment to a Moon landing, in January 1962 the US announced Project Gemini, a two-man spacecraft that would support the later three-man Apollo by developing the key spaceflight technologies of space rendezvous and docking of two craft, flight durations of sufficient length to simulate going to the Moon and back, and extra-vehicular activity to accomplish useful work outside the spacecraft.
What year was the Gemini project confirmed?
The answer is the following: 1962

Greece is home to the first advanced civilizations in Europe and is considered the birthplace of Western civilization,[citation clutter] beginning with the Cycladic civilization on the islands of the Aegean Sea at around 3200 BC, the Minoan civilization in Crete (27001500 BC), and then the Mycenaean civilization on the mainland (19001100 BC). These civilizations possessed writing, the Minoans writing in an undeciphered script known as Linear A, and the Mycenaeans in Linear B, an early form of Greek. The Mycenaeans gradually absorbed the Minoans, but collapsed violently around 1200 BC, during a time of regional upheaval known as the Bronze Age collapse. This ushered in a period known as the Greek Dark Ages, from which written records are absent.
Around 1200 BC, what was the fall of the regional civilizations called?
Bronze Age collapse

Here is a question about this article: The concentration of copper in ores averages only 0.6%, and most commercial ores are sulfides, especially chalcopyrite (CuFeS2) and to a lesser extent chalcocite (Cu2S). These minerals are concentrated from crushed ores to the level of 1015% copper by froth flotation or bioleaching. Heating this material with silica in flash smelting removes much of the iron as slag. The process exploits the greater ease of converting iron sulfides into its oxides, which in turn react with the silica to form the silicate slag, which floats on top of the heated mass. The resulting copper matte consisting of Cu2S is then roasted to convert all sulfides into oxides:
What is the answer to this question: What happens to the silicate slag during the flash smelting process?
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So...
floats on top