The two major political parties in the u. s. are a considered part of
a. the principle of checks and balances
b. the unwritten constitution
c. article 1 of the constitution
d. the practice of judicial review
incorrect answer i report ye

i believe the the answer is either option A or option D i hope this is helpful

dirty, contaminated water

contaminated food,

chlostrophobic living spaces,

mice infestation,

etc,

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.