B is the answer because......
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:
Answer:
If we do nothing, the world will become significantly less habitable. ... Scientists have studied global warming for more than 100 years. ... The cumulative effect is to raise the planet's temperature. ... Scientists have taken detailed measurements of carbon dioxide (CO2) levels since the late 1950s
Explanation:
Answer: The Earth is a closed system for matter
That is a list of all basic elemental materials on our planet. Because of gravity, matter (comprising all solids, liquids and gases) does not leave the system.