Socisl unit 7

-Plot: An area of land where crops are grown. It can vary in sixe, shape or borders

-Soil: The subtance on the surface of the Earth in which plants grow, produced mainly by the weathering of rock.

-Crop rotation: The practice of growing different types of crops in the same area in sequential seasons. This method improves sil fertility and resistance to disease and pests

-Intensive agriculture:  is an agricultural production system characterized by a low fallow ratio and the high use of inputs such as capital, labour, or heavy use of pesticides and chemical fertilizers relative to land area.

-Extensive agriculture: An agricultural system that uses small inputs of labour, fertilisers, and capital, relative to the area of land that is being farmed.

-Dryland farming: Farming in which the fields receive only rainwater.

-Irrigated farming: Farming in which the water from groundwater, reservoirs or rivers is brought to fields.

-Polyculture:  is agriculture using multiple crops in the same space, in imitation of the diversity of natural ecosystems, and avoiding large stands of single crops, or monoculture. It includes multi-cropping, intercropping, companion planting, beneficial weeds, and alley cropping.

-Monoculture:  is the agricultural practice of producing or growing a single crop or plant species over a wide area and for a large number of consecutive years

-Greenhouses:  is a building in which plants are grown

-Subsistence agriculture: A type of agriculture in which farmers only grow enough food to feed themselves and their families.

-Shifting cultivation:  is an agricultural system in which plots of land are cultivated temporarily, then abandoned and allowed to revert to their natural vegetation while the cultivator moves on to another plot

-Livestock farming: Farming bassed on rearing animals to obtain products.

-Housed livestock: Livestock fed with fodder in farm buildings. This type of livestock must pass strict sanitary and quality controls

-Cattle: are the most common type of large domesticated ungulates.

-Fodder:  is any agricultural foodstuff used specifically to feed domesticated livestock, such as cattle, goats, sheep, horses, chickens and pigs.

-Rear: To care for, breed and grow animals until maturity.

-Fishing grounds: An area of water that is used for fishing.

-Aquaculture: is the farming of aquatic organisms such as fish, crustaceans, molluscs and aquatic plants.

-Overfishing:  is a form of overexploitation in which fish stocks are depleted to unacceptable levels, regardless of water body size.

-Fleets: is an aggregate of commercial fishing vessels

-School of fish: many fishes together