Lusaka in the context of "Sirte Declaration"

Tertiary education (also called higher education or post-secondary education) is the educational level following the completion of secondary education. The World Bank defines tertiary education as including universities, colleges, and vocational schools. Higher education is taken to include undergraduate and postgraduate education, while vocational education beyond secondary education is known as further education in the United Kingdom, or included under the category of continuing education in the United States.

Tertiary education generally culminates in the receipt of certificates, diplomas, or academic degrees. Higher education represents levels 5, 6, 7, and 8 of the 2011 version of the International Standard Classification of Education structure. Tertiary education at a nondegree level is sometimes referred to as further education or continuing education as distinct from higher education.

Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater. This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution. Groundwater pollution can occur from on-site sanitation systems, landfill leachate, effluent from wastewater treatment plants, leaking sewers, petrol filling stations, hydraulic fracturing (fracking), or from over application of fertilizers in agriculture. Pollution (or contamination) can also occur from naturally occurring contaminants, such as arsenic or fluoride. Using polluted groundwater causes hazards to public health through poisoning or the spread of disease (water-borne diseases).

The pollutant often produces a contaminant plume within an aquifer. Movement of water and dispersion within the aquifer spreads the pollutant over a wider area. Its advancing boundary, often called a plume edge, can intersect with groundwater wells and surface water, such as seeps and springs, making the water supplies unsafe for humans and wildlife. The movement of the plume, called a plume front, may be analyzed through a hydrological transport model or groundwater model. Analysis of groundwater pollution may focus on soil characteristics and site geology, hydrogeology, hydrology, and the nature of the contaminants. Different mechanisms have influence on the transport of pollutants, e.g. diffusion, adsorption, precipitation, decay, in the groundwater.

Decentralized wastewater systems (also referred to as decentralized wastewater treatment systems) convey, treat and dispose or reuse wastewater from small and low-density communities, buildings and dwellings in remote areas, individual public or private properties. Wastewater flow is generated when appropriate water supply is available within the buildings or close to them.

Decentralized wastewater systems treat, reuse or dispose the effluent in relatively close vicinity to its source of generation. They have the purpose to protect public health and the natural environment by reducing substantially health and environmental hazards.

Zambia, officially the Republic of Zambia, is a landlocked country located in Southeast Africa. It is bordered to the north by the Democratic Republic of the Congo, Tanzania to the north-east, Malawi to the east, Mozambique to the southeast, Zimbabwe and Botswana to the south, Namibia to the southwest, and Angola to the west. The capital city of Zambia is Lusaka, located in the south-central part of Zambia. The population is concentrated mainly around Lusaka in the south and the Copperbelt Province to the north, the core economic hubs of the country.

Originally inhabited by Khoisan peoples, the region was affected by the Bantu expansion of the thirteenth century. Following European expeditions in the eighteenth century, Britain colonised the region, forming the British protectorates of Barotziland–North-Western Rhodesia and North-Eastern Rhodesia towards the end of the nineteenth century. These were merged in 1911 to form Northern Rhodesia. For most of the colonial period, Zambia was governed by an administration appointed from London with the advice of the British South Africa Company.

The African National Congress (ANC) is a political party in South Africa. It originated as a liberation movement known for its opposition to apartheid and has governed the country since 1994, when the first post-apartheid election resulted in Nelson Mandela being elected as President of South Africa. Cyril Ramaphosa, the incumbent national president, has served as president of the ANC since 18 December 2017.

Founded on 8 January 1912 in Bloemfontein as the South African Native National Congress, the organisation was formed to advocate for the rights of black South Africans. When the National Party government came to power in 1948, the ANC's central purpose became to oppose the new government's policy of institutionalised apartheid. To this end, its methods and means of organisation shifted; its adoption of the techniques of mass politics, and the swelling of its membership, culminated in the Defiance Campaign of civil disobedience in 1952–53. The ANC was banned by the South African government between April 1960 – shortly after the Sharpeville massacre – and February 1990. During this period, despite periodic attempts to revive its domestic political underground, the ANC was forced into exile by increasing state repression, which saw many of its leaders imprisoned on Robben Island. Headquartered in Lusaka, Zambia, the exiled ANC dedicated much of its attention to a campaign of sabotage and guerrilla warfare against the apartheid state, carried out under its military wing, uMkhonto weSizwe, which was founded in 1961 in partnership with the South African Communist Party (SACP). The ANC was condemned as a terrorist organisation by the governments of South Africa, the United States, and the United Kingdom. However, it positioned itself as a key player in the negotiations to end apartheid, which began in earnest after the ban was repealed in 1990. For much of that time, the ANC leadership, along with many of its most active members, operated from abroad. After the Soweto Uprising of 1976, the ANC remained committed to achieving its objectives through armed struggle. These circumstances significantly shaped the ANC during its years in exile.

A hula hoop is a toy hoop that is twirled around the waist, limbs or neck.

Joan (Constance Manning) Anderson named the Hula-Hoop.