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Cleaner fish. Cleaner fish are fish that show a specialist feeding strategy [1] by providing a service to other species, referred to as clients, [2] by removing dead skin, ectoparasites, and infected tissue from the surface or gill chambers. [2] This example of cleaning symbiosis represents mutualism and cooperation behaviour, [3] an ecological ...
A variety of plastic objects conserved in a museum (Finland) Conservation and restoration of objects made from plastics is work dedicated to the conservation of objects of historical and personal value made from plastics. When applied to cultural heritage, this activity is generally undertaken by a conservator-restorer .
The Government of India has social welfare and social security schemes for India's citizens funded either by the central government, state government or concurrently. Schemes which are fully funded by the central government are referred to as "central sector schemes" (CS) while schemes mainly funded by the centre and implemented by the states are "centrally sponsored schemes" (CSS).
Pennsylvania ( / ˌpɛnsɪlˈveɪniə / ⓘ, lit. 'Penn's forest country' ), officially the Commonwealth of Pennsylvania [b] ( Pennsylvania Dutch: Pennsylvanie ), [7] is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States.
Aquaponics is a food production system that couples aquaculture (raising aquatic animals such as fish, crayfish, snails or prawns in tanks) with hydroponics (cultivating plants in water) whereby the nutrient-rich aquaculture water is fed to hydroponically grown plants. [1] [2]
Los Angeles is the state's most populous city and the nation's second-most, after New York. California's capital, Sacramento, is located in the Central Valley . Prior to European colonization, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America.
Fountains aerate water by spraying it into the air. Water aeration is the process of increasing or maintaining the oxygen saturation of water in both natural and artificial environments. Aeration techniques are commonly used in pond, lake, and reservoir management to address low oxygen levels or algal blooms. [1]
Arizona is the sixth largest state by area, ranked after New Mexico and before Nevada. Of the state's 113,998 square miles (295,000 km 2 ), approximately 15% is privately owned. The remaining area is public forest and parkland, state trust land and Native American reservations.
A biosand filter (BSF) is a point-of-use water treatment system adapted from traditional slow sand filters. Biosand filters remove pathogens and suspended solids from water using biological and physical processes that take place in a sand column covered with a biofilm. BSFs have been shown to remove heavy metals, turbidity, bacteria, viruses ...
Soekarno–Hatta International Airport (Indonesian: Bandar Udara Internasional Soekarno–Hatta) (IATA: CGK, ICAO: WIII), abbreviated SHIA or Soetta, formerly legally called Jakarta Cengkareng Airport (Indonesian: Bandar Udara Jakarta Cengkareng) (hence the IATA designator "CGK"), is the primary airport serving the Jakarta metropolitan area on the island of Java in Indonesia.