In australia, when aborigines become part of the dominant society but then refuse to acknowledge their grandparents' traditional tribal ways, they are practicing the process of

Aborigines were practicing the process of assimilation when they became a part of the dominant society in Australia but then refused to acknowledge the traditional tribal ways of their grandparents.

Assimilation is when a group slowly adapts to the attitudes and customs of the dominant customs and culture.

the correct answer is modern american cars are not available due to trade restrictions.

trade between cuba and the united states have serious restrictions. the u.s. imposed an economic embargo on cuba, that among other things means that modern american cars are not available due to trade restrictions.

in response to some governmental actions of the authorities from cuba, president john f. kennedy proclaimed an embargo on trade between both countries in february 1962. the trade embargo remains active until this day and was implemented directly by the departments of commerce and the department of treasury.

in president trump’s administration, there is a national security presidential memorandum that "strengthens the policy of the u. s.", affecting trade with cuba.