Answer:
City-states
Explanation:
Monaco, Singapore, and Vatican are all examples of city-states. While this type of state was very common in the past, nowadays it is only these three states that officially fall into this category. Monaco is located in Europe, on the Azure coastline. Vatican is also located in Europe, in the central part of the Italian capital Rome. Singapore is located in Asia, connecting the continental and island parts of Southeast Asia. All three are very powerful economically, with Vatican also having big religious and political power, and Singapore being one of the economic leaders in its region.
The Gambia is the smallest country in the region that is not an island or a series of islands.
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Death Valley is located in A. California
Of these choices i'd say that the third option or "domestic fuels are always cheaper to acquire and renewable". I hope this helps :)
Goods are usually carried on large barges that go through the Volga river, Russia's most valueable geographical asset due to its large extent from East to West.