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Under ideal laboratory conditions, an oyster can filter up to 190 L (50 US gal) of water per day. Under average conditions, mature oysters filter 11–45 L (3–12 U.S. gal). Chesapeake Bay 's once-flourishing oyster population historically filtered excess nutrients from the estuary's entire water volume every three to four days.
The Ministry of Natural Resources and Environment (MONRE, Vietnamese: Bộ Tài nguyên và Môi trường) is a government ministry in Vietnam responsible for: land, water resources; mineral resources, geology; environment; hydrometeorology; climate change; surveying and mapping; management of the islands and the sea.
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
Từ điển bách khoa Việt Nam (lit: Encyclopaedic Dictionary of Vietnam) is a state-sponsored Vietnamese-language encyclopedia that was first published in 1995. It has four volumes consisting of 40,000 entries, the final of which was published in 2005. [1] The encyclopedia was republished in 2011.
The Vietnam Academy of Science and Technology (VAST; Vietnamese: Viện Hàn lâm Khoa học và Công nghệ Việt Nam) is the largest and most prominent research institute in Vietnam. It was founded on 20 May 1975 as the Vietnam Academy of Science, then subsequently assumed its current name in 2008
Centrifugal filtration is carried out by rapidly rotating the substance to be filtered. The more dense material is separated from the less dense matter by the horizontal rotation. [4] Gravity filtration is the process of pouring the mixture from a higher location to a lower one. It is frequently accomplished via simple filtration, which ...
President Ngo Dinh Diem and family at his home in Hue (Central Viet Nam).jpg; President Ngo Dinh Diem on an inspection tour 350 km from Saigon (December, 1956).jpg; Portrait of Ngô Đình Diệm, from the book Ngo Dinh Diem of Viet-Nam.jpg; President Ngo Dinh Diem with the troops who defeated the Binh-Xuyen at Rung-Sat (May, 1955).jpg
Cát Tiên National Park (CTNP) was protected initially in 1978 as two sectors, Nam Cat Tien and Tay Cat Tien. Another sector, Cat Loc , was gazetted as a rhinoceros reserve in 1992 upon the discovery of a population of the Vietnamese Javan rhinoceros , an occasion that brought the park into the world's eye.