Governments are most often motivated to eliminate a population because of the effects of a. international alliances b. financial incentives c. racism and ethnic hatred d. environmental challenges

C. racism and ethnic hatred

Explanation:

When a government wants to eliminate a certain group or a certain proportion of the population of a country, this is usually motivated by racism and ethnic hatred. In cases where the government has taken action on this and persecuted and murdered these people, the event is called a genocide. This is considered a crime against humanity that can be prosecuted by the International Court of Justice.

i really really really really really really dont know

answer; /// i believe that the correct answer is (d)the huang he river valley;