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Is this statement true or false? Historians have determined that Harappa and Mohenjo Daro declined because of a drought, which caused a. Is this statement true or false? Historians have determined that Harappa and Mohenjo Daro declined because of a drought, which caused a food shortage. true false. Categories History. Leave a Reply Cancel reply.
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B. change natural marine life habitats.
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Aquaculture or aquaculture is the set of activities, techniques and knowledge of breeding aquatic plant and animal species. It is an important economic activity of food production, raw materials for industrial and pharmaceutical use, and living organisms for repopulation or ornamentation. The farming systems are very diverse, from freshwater or seawater, and from cultivation directly in the environment to installations under fully controlled conditions. The most common crops correspond to planktonic organisms (microalgae7 and Artemia), macroalgae, molluscs and crustaceans, the professionals in charge of this work are Fisheries Engineers, Zootechnicians, Aquatic Engineers and Marine Biologists.
Fish farming is the breeding of fish, a term used to group a great diversity of crops that are very different from each other, generally denominated according to the species or the family. The facilities of industrial fish farming are known as fish farms, although this is a term in disuse, due to the diversification that has suffered the crop, in tanks, ponds, floating cages, etc. The most produced species worldwide are carp, salmon, tilapia and catfish.
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Such a practice is known as shifting cultivation or slash-and-burn. This was used by tribal people and American Indians for farming. They clear the land, grow crops for a few years, and move away when the land is fallow, allowing the land to regain nutrients and the forest to grow back. They generally return to the land in 10 to 12 years.
