Answer:
The most common geographic boundary is the physical boundary.
Explanation:
Rivers, mountains, lakes, deserts are all physical boundaries.
The Mississippi River is a physical boundary between many countries that trespasses, including Iowa and Illinois, Louisiana, and Mississippi.
Pyrenees Mountains are also the geographic boundary between France and Italy.
The answer is ''a self-governing territory associated with another country'' so its ''b''
The position on earth's surface directly above the earthquake source is called the epicenter.
