What was the biggest challenge in foreign policy facing us presidents in the 1990s?

a. the fall of soviet communism

b. the rise of unilateralism

c. the terrorist attacks on the united states

d. the development of china's military

a.tensions between the colonial elites and the backcountry men of virginia.

the of atp are the key to its ability to store and supply energy;

phosphate

the phosphate groups of atp are the key to its ability to store and supply energy. atp releases energy when it breaks bonds between its phosphate groups.

hitlers fav so e: jews

naturalization is the process of gaining united states citizenship. becoming an american citizen is the ultimate goal for many immigrants, but very few people are aware that the requirements for naturalization have been over 200 years in the making.