Given the following passage "There is some evidence, in the form of ice cores drilled to about 400 m (1,300 ft) above the water line, that Lake Vostok's waters may contain microbial life. The frozen surface of the lake shares similarities with Jupiter's moon, Europa. If life is discovered in Lake Vostok, it would strengthen the argument for the possibility of life on Europa. On 7 February 2008, a NASA team embarked on a mission to Lake Untersee, searching for extremophiles in its highly alkaline waters. If found, these resilient creatures could further bolster the argument for extraterrestrial life in extremely cold, methane-rich environments.", answer the following question. Note that the answer is present within the text. Question: What's the temperature like in the area of Lake Vostok?
Ans: extremely cold

Given the following passage "In his book, Humanism (1997), Tony Davies calls these critics "humanist anti-humanists". Critics of antihumanism, most notably Jurgen Habermas, counter that while antihumanists may highlight humanism's failure to fulfil its emancipatory ideal, they do not offer an alternative emancipatory project of their own. Others, like the German philosopher Heidegger considered themselves humanists on the model of the ancient Greeks, but thought humanism applied only to the German "race" and specifically to the Nazis and thus, in Davies' words, were anti-humanist humanists. Such a reading of Heidegger's thought is itself deeply controversial; Heidegger includes his own views and critique of Humanism in Letter On Humanism. Davies acknowledges that after the horrific experiences of the wars of the 20th century "it should no longer be possible to formulate phrases like 'the destiny of man' or the 'triumph of human reason' without an instant consciousness of the folly and brutality they drag behind them". For "it is almost impossible to think of a crime that has not been committed in the name of human reason". Yet, he continues, "it would be unwise to simply abandon the ground occupied by the historical humanisms. For one thing humanism remains on many occasions the only available alternative to bigotry and persecution. The freedom to speak and write, to organise and campaign in defence of individual or collective interests, to protest and disobey: all these can only be articulated in humanist terms."", answer the following question. Note that the answer is present within the text. Question: Who wrote Letter On Humanism?
Ans: Heidegger

Given the following passage "Semi-additive is the most common process: The unpatterned board has a thin layer of copper already on it. A reverse mask is then applied. (Unlike a subtractive process mask, this mask exposes those parts of the substrate that will eventually become the traces.) Additional copper is then plated onto the board in the unmasked areas; copper may be plated to any desired weight. Tin-lead or other surface platings are then applied. The mask is stripped away and a brief etching step removes the now-exposed bare original copper laminate from the board, isolating the individual traces. Some single-sided boards which have plated-through holes are made in this way. General Electric made consumer radio sets in the late 1960s using additive boards.", answer the following question. Note that the answer is present within the text. Question: What is a board with only one-side called?
Ans: single-sided

Given the following passage "Judging relationships based on shared characters requires care, since plants may resemble one another through convergent evolution in which characters have arisen independently. Some euphorbias have leafless, rounded bodies adapted to water conservation similar to those of globular cacti, but characters such as the structure of their flowers make it clear that the two groups are not closely related. The cladistic method takes a systematic approach to characters, distinguishing between those that carry no information about shared evolutionary history such as those evolved separately in different groups (homoplasies) or those left over from ancestors (plesiomorphies) and derived characters, which have been passed down from innovations in a shared ancestor (apomorphies). Only derived characters, such as the spine-producing areoles of cacti, provide evidence for descent from a common ancestor. The results of cladistic analyses are expressed as cladograms: tree-like diagrams showing the pattern of evolutionary branching and descent.", answer the following question. Note that the answer is present within the text. Question: what are cladograms?
Ans: tree-like diagrams