A national border would most likely have the most protection because nation's seek to prevent the import of illegal goods, movement of individuals into the country, and also to protect their borders against potential foreign invasion. Traditionally national borders would have more defenses, army, security forces, and police to protect the border than any of the rest of these borders.
Answer:
Irrigation highly depends on water sources in order for it to work. Without clean water, crops will die and wither. And polluted water causes filthy and contaminated trade routes, which are unsafe to travel across. Also, education has water fountains in the buildings (not sure now cuz of corona but clean water is used in school buildings.
Explanation:
B. Trade
Trade allowed for more travel, sharing of ideas and goods.
This statement is a true statement. Mikhail Gorbachev was indeed the eighth leader and definitely the last leader of the Soviet union (which is now called Russia.) When the party was dissolved he served as the General Secretary of the Soviet Union from 1985-1991.
