Answer:
They own all the agricultural and mining land. The remaining land owned by black people is lar. The land is, by far, the most important benefit white South Africans gained from colonialism and apartheid.
Explanation:
https://www.quora.com/How-have-white-South-Africans-benefited-from-colonialism-and-apartheid
More food= more people, more people means you need more food, which means you get people to make more food, which attracts more people, etc, etc.
The purpose of the immigration act of 1990 was to amend the Immigration and Nationality Act to change the level, preference system for admission, to provide for administrative naturalization, of the immigrants of US, and for other purposes.