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13 小時前 · Official website. NBA.com. The National Basketball Association ( NBA) is a professional basketball league in North America composed of 30 teams (29 in the United States and 1 in Canada). It is one of the major professional sports leagues in the United States and Canada and is considered the premier professional basketball league in the world.
1 天前 · Air pollution is the contamination of air due to the presence of substances called pollutants in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials. [1] It is also the contamination of the indoor or outdoor environment either by chemical, physical, or biological agents ...
3 天前 · Bird Tanchō (red-crowned crane, Grus japonensis) Flower Hamanasu (rugosa rose, Rosa rugosa) Mascot Kyun-chan (キュンちゃん) Tree Ezomatsu (Jezo spruce, Picea jezoensis) Hokkaido (Japanese: 北海道, Hepburn: Hokkaidō, pronounced [hokka idoː] , lit. ' Northern Sea Circuit ') is the second-largest island of Japan and comprises the largest and northernmost prefecture, making up its own ...
1 天前 · The United Nations Educational, Scientific and Cultural Organization (UNESCO) is a specialized agency of the United Nations (UN) with the aim of promoting world peace and security through international cooperation in education, arts, sciences and culture. It has 194 member states and 12 associate members, as well as partners in the non-governmental, intergovernmental and private sector.
1 天前 · Nicholas II (Nikolai Alexandrovich Romanov;[d] 18 May [O.S. 6 May] 1868 – 17 July 1918) or Nikolai II was the last reigning Emperor of Russia, King of Congress Poland, and Grand Duke of Finland from 1 November 1894 until his abdication on 15 March 1917. During his reign, Nicholas gave support to the economic and political reforms promoted by ...
1 天前 · Cameroon,[a] officially the Republic of Cameroon,[b] is a country in Central Africa. It shares boundaries with Nigeria to the west and north, Chad to the northeast, the Central African Republic to the east, and Equatorial Guinea, Gabon and the Republic of the Congo to the south. Its coastline lies on the Bight of Biafra, part of the Gulf of ...
6 天前 · Adrenaline, also known as epinephrine, is a hormone and medication[7][8] which is involved in regulating visceral functions (e.g., respiration).[7][9] It appears as a white microcrystalline granule.[10] Adrenaline is normally produced by the adrenal glands and by a small number of neurons in the medulla oblongata.[11] It plays an essential ...
