Federal courts can check the other branches of the federal government and of state governments by

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.

sharing a small living space with family

members. during the industrial revolution, people from the countryside came to

cities in multitudes looking for greener pastures by obtaining jobs in

factories. for this reason, the family members had to live together in small

space