When lakes are used for aquaculture, excess fish food pollutes the water as complete use of the food cannot be achieved (Photo 21). Nitrogen and phosphorus present in the excess food is dissolved or suspended in the water.
According to Statistics South Africa's Census 2011 data, in 2011 the country's population was 51 770 560, of which 26 581 769 (51.3%) were female and 25 188 791 (48.7%) were male. Africans are in the majority at just over 41-million, making up 79.2% of the total population.The coloured population is 4 615 401 (8.9%), while there are 4 586 838 (8.9%) whites. The Indian/Asian population stands at 1 286 930 (2.5%).auteng, South Africa's economic powerhouse, is the most populous of the country's provinces, although it is by far the smallest geographically. Some 12.3-million people live in the province, or 23.7% of the total.
South African citizens, over 18 years of age, who have registered as a voter and hold a national identity book for the purpose of proof of identity can vote.People who have not bothered to register, or who cannot prove their identity may not vote.outh Africa is a country located at the very south end of the continent of Africa. It is a large country and is arguably considered the economic powerhouse of the African con â¦ tinent. It is known officially as The Republic of South Africa, or RSA for short.