The hardness of the water is given by the presence of calcium and magnesium <span>carbonates. The mixing of these minerals in water turns the water more alkaline.
</span><span>The Langelier saturation index uses the pH to predict the calcium carbonate stability of water. So, through the pH, it is possible to know whether a water is more or less acidic.</span>
Political maps structure
climate weather forecast maps
Give voting rights to women in 1967 (South Yemen) and 1970 (North Yemen)
Apartheid (“apartness” in the language of Afrikaans) was a system of legislation that upheld segregationist policies against non-white citizens of South Africa. After the National Party gained power in South Africa in 1948, its all-white government immediately began enforcing existing policies of racial segregation. Under apartheid, nonwhite South Africans (a majority of the population) would be forced to live in separate areas from whites and use separate public facilities. Contact between the two groups would be limited. Despite strong and consistent opposition to apartheid within and outside of South Africa, its laws remained in effect for the better part of 50 years. In 1991, the government of President F.W. de Klerk began to repeal most of the legislation that provided the basis for apartheid. President de Klerk and activist Nelson Mandela would later win the Nobel Peace Prize for their work creating a new constitution for South Africa.
Who Started Apartheid in South Africa?
Racial segregation and white supremacy had become central aspects of South African policy long before apartheid began. The controversial 1913 Land Act, passed three years after South Africa gained its independence, marked the beginning of territorial segregation by forcing black Africans to live in reserves and making it illegal for them to work as sharecroppers. Opponents of the Land Act formed the South African National Native Congress, which would become the African National Congress (ANC).
Did you know? ANC leader Nelson Mandela, released from prison in February 1990, worked closely with President F.W. de Klerk's government to draw up a new constitution for South Africa. After both sides made concessions, they reached agreement in 1993, and would share the Nobel Peace Prize that year for their efforts.
The Great Depression and World War II brought increasing economic woes to South Africa, and convinced the government to strengthen its policies of racial segregation. In 1948, the Afrikaner National Party won the general election under the slogan “apartheid” (literally “apartness”). Their goal was not only to separate South Africa’s white minority from its non-white majority, but also to separate non-whites from each other, and to divide black South Africans along tribal lines in order to decrease their political power.
All the listed items are part of the ecosystem
Explanation: very very late :(
