What kinds of conditions would make children want or not want to learn a language spoken by their parents or grandparents?

As water is cooled from 4 c to 0 c its density

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare

What was apartheid and how did it restrict the rights of non-whites?