Article: Families throughout Han China made ritual sacrifices of animals and food to deities, spirits, and ancestors at temples and shrines, in the belief that these items could be utilized by those in the spiritual realm. It was thought that each person had a two-part soul: the spirit-soul (hun 魂) which journeyed to the afterlife paradise of immortals (xian), and the body-soul (po 魄) which remained in its grave or tomb on earth and was only reunited with the spirit-soul through a ritual ceremony. These tombs were commonly adorned with uniquely decorated hollow clay tiles that function also as a doorjamb to the tomb. Otherwise known as tomb tiles, these artifacts feature holes in the top and bottom of the tile allowing it to pivot. Similar tiles have been found in the Chengdu area of Sichuan province in south-central China.

Question: What could be used to prevent a door from closing in a place of burial?
Ans: hollow clay tiles


Article: The study of plants is vital because they underpin almost all animal life on Earth by generating a large proportion of the oxygen and food that provide humans and other organisms with aerobic respiration with the chemical energy they need to exist. Plants, algae and cyanobacteria are the major groups of organisms that carry out photosynthesis, a process that uses the energy of sunlight to convert water and carbon dioxide into sugars that can be used both as a source of chemical energy and of organic molecules that are used in the structural components of cells. As a by-product of photosynthesis, plants release oxygen into the atmosphere, a gas that is required by nearly all living things to carry out cellular respiration. In addition, they are influential in the global carbon and water cycles and plant roots bind and stabilise soils, preventing soil erosion. Plants are crucial to the future of human society as they provide food, oxygen, medicine, and products for people, as well as creating and preserving soil.

Question: What do plant roots prevent?
Ans: soil erosion


Article: According to a study by the China Earthquake Administration (CEA), the earthquake occurred along the Longmenshan fault, a thrust structure along the border of the Indo-Australian Plate and Eurasian Plate. Seismic activities concentrated on its mid-fracture (known as Yingxiu-Beichuan fracture). The rupture lasted close to 120 sec, with the majority of energy released in the first 80 sec. Starting from Wenchuan, the rupture propagated at an average speed of 3.1 kilometers per second 49° toward north east, rupturing a total of about 300 km. Maximum displacement amounted to 9 meters. The focus was deeper than 10 km.

Question: How deep was the focus of the earthquake?
Ans: 10 km


Article: Orientalist scholars of the 18th century like Sir William Jones marked a wave of enthusiasm for Indian culture and for Sanskrit. According to Thomas Trautmann, after this period of "Indomania", a certain hostility to Sanskrit and to Indian culture in general began to assert itself in early 19th century Britain, manifested by a neglect of Sanskrit in British academia. This was the beginning of a general push in favor of the idea that India should be culturally, religiously and linguistically assimilated to Britain as far as possible. Trautmann considers two separate and logically opposite sources for the growing hostility: one was "British Indophobia", which he calls essentially a developmentalist, progressivist, liberal, and non-racial-essentialist critique of Hindu civilisation as an aid for the improvement of India along European lines; the other was scientific racism, a theory of the English "common-sense view" that Indians constituted a "separate, inferior and unimprovable race".

Question: When was Sanskrit and Indian culture popular?
Ans:
18th century