Salinization and desertification
Answer:
Imperialism:
An unequal relationship between territories that is
based on domination and subordination.
Landlocked State:
A state that is completely surrounded by other countries.
Geometric Boundaries:
Boundaries that follow straight lines and do not have much
to do with natural boundaries.
Federal States:
Governments that give their local territories autonomous power and do not have central control
of the entire country.
Irredentism:
The theory, support, or process by which one state seeks to annex a territory governed by another state
Exclaves:
Completely separate holdings that lie within another country.
Explanation:
Earthquakes occur along plat boundaries and faults. Most earthquakes happen along the edge of continental and oceanic plates. Faults are found in the middle of the plates. They're like cracks that form when the different parts of the plates don't move in the same direction.
I don't know if you have to choose only one answer, because answers 2, 3, and 5. It affected throughout the world, and it also reduced communist nations and changed boundaries.