Problem: Given the question: Given the following passage "In the early 11th century, the Muslim physicist Ibn al-Haytham (Alhacen or Alhazen) discussed space perception and its epistemological implications in his Book of Optics (1021), he also rejected Aristotle's definition of topos (Physics IV) by way of geometric demonstrations and defined place as a mathematical spatial extension. His experimental proof of the intromission model of vision led to changes in the understanding of the visual perception of space, contrary to the previous emission theory of vision supported by Euclid and Ptolemy. In "tying the visual perception of space to prior bodily experience, Alhacen unequivocally rejected the intuitiveness of spatial perception and, therefore, the autonomy of vision. Without tangible notions of distance and size for correlation, sight can tell us next to nothing about such things."", answer the following question. Note that the answer is present within the text. Question: In which 100-year period was the Book of Optics released?
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The answer is:
11th century

Problem: Given the question: Given the following passage "The discipline of plant ecology was pioneered in the late 19th century by botanists such as Eugenius Warming, who produced the hypothesis that plants form communities, and his mentor and successor Christen C. Raunkir whose system for describing plant life forms is still in use today. The concept that the composition of plant communities such as temperate broadleaf forest changes by a process of ecological succession was developed by Henry Chandler Cowles, Arthur Tansley and Frederic Clements. Clements is credited with the idea of climax vegetation as the most complex vegetation that an environment can support and Tansley introduced the concept of ecosystems to biology. Building on the extensive earlier work of Alphonse de Candolle, Nikolai Vavilov (18871943) produced accounts of the biogeography, centres of origin, and evolutionary history of economic plants.", answer the following question. Note that the answer is present within the text. Question: In relation to Vavilov, when did Candolle conduct his work?
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The answer is:
earlier

Problem: Given the question: Given the following passage "African Presbyterian churches often incorporate diaconal ministries, including social services, emergency relief, and the operation of mission hospitals. A number of partnerships exist between presbyteries in Africa and the PC(USA), including specific connections with Lesotho, Malawi, South Africa, Ghana and Zambia. For example, the Lackawanna Presbytery, located in Northeastern Pennsylvania, has a partnership with a presbytery in Ghana. Also the Southminster Presbyterian Church, located near Pittsburgh, has partnerships with churches in Malawi and Kenya. The Presbyterian Church of Nigeria, western Africa is also healthy and strong in mostly the southern states of this nation, strong density in the south-eastern states of this country. Beginning from Cross River state, the nearby coastal states, Rivers state, Lagos state to Ebonyi and Abia States. The missionary expedition of Mary Slessor and Hope Waddel and their group in the mid 18th century in this coastal regions of the ten British colony has brought about the beginning and the flourishing of this church in these areas.", answer the following question. Note that the answer is present within the text. Question: If I someone needs emergency relief what service could benefit them?
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The answer is:
diaconal ministries