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About 1150 species of fungi have been recorded from Antarctica, of which about 750 are non-lichen-forming and 400 are lichen-forming. Some of these species are cryptoendoliths as a result of evolution under extreme conditions, and have significantly contributed to shaping the impressive rock formations of the McMurdo Dry Valleys and surrounding mountain ridges. The apparently simple morphology, scarcely differentiated structures, metabolic systems and enzymes still active at very low temperatures, and reduced life cycles shown by such fungi make them particularly suited to harsh environments such as the McMurdo Dry Valleys. In particular, their thick-walled and strongly melanized cells make them resistant to UV light. Those features can also be observed in algae and cyanobacteria, suggesting that these are adaptations to the conditions prevailing in Antarctica. This has led to speculation that, if life ever occurred on Mars, it might have looked similar to Antarctic fungi such as Cryomyces minteri. Some of these fungi are also apparently endemic to Antarctica. Endemic Antarctic fungi also include certain dung-inhabiting species which have had to evolve in response to the double challenge of extreme cold while growing on dung, and the need to survive passage through the gut of warm-blooded animals.
What has significantly contributed to shaping the Dry McMurdo Valleys?
A: unanswerable

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In the 1874 general election, Disraeli was returned to power. He passed the Public Worship Regulation Act 1874, which removed Catholic rituals from the Anglican liturgy and which Victoria strongly supported. She preferred short, simple services, and personally considered herself more aligned with the presbyterian Church of Scotland than the episcopal Church of England. He also pushed the Royal Titles Act 1876 through Parliament, so that Victoria took the title "Empress of India" from 1 May 1876. The new title was proclaimed at the Delhi Durbar of 1 January 1877.
What year was the Public Worship Regulation Act passed?
A: unanswerable

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Mexico City is located in the Valley of Mexico, sometimes called the Basin of Mexico. This valley is located in the Trans-Mexican Volcanic Belt in the high plateaus of south-central Mexico. It has a minimum altitude of 2,200 meters (7,200 feet) above sea level and is surrounded by mountains and volcanoes that reach elevations of over 5,000 metres (16,000 feet). This valley has no natural drainage outlet for the waters that flow from the mountainsides, making the city vulnerable to flooding. Drainage was engineered through the use of canals and tunnels starting in the 17th century.
What is the minimum height in meters of the region Mexico City is located in?
A: 2,200

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Large numbers of Bolivian highland peasants retained indigenous language, culture, customs, and communal organization throughout the Spanish conquest and the post-independence period. They mobilized to resist various attempts at the dissolution of communal landholdings and used legal recognition of "empowered caciques" to further communal organization. Indigenous revolts took place frequently until 1953. While the National Revolutionary Movement government begun in 1952 discouraged self-identification as indigenous (reclassifying rural people as campesinos, or peasants), renewed ethnic and class militancy re-emerged in the Katarista movement beginning in the 1970s. Lowland indigenous peoples, mostly in the east, entered national politics through the 1990 March for Territory and Dignity organized by the CIDOB confederation. That march successfully pressured the national government to sign the ILO Convention 169 and to begin the still-ongoing process of recognizing and titling indigenous territories. The 1994 Law of Popular Participation granted "grassroots territorial organizations" that are recognized by the state certain rights to govern local areas.
What re-emerged during the Katarista movement in the 1970s?
A:
ethnic and class militancy