The subject here is simple" it's just "Antarctica" .
The verb is also not compound, it's a simple verb: "has".
The compound part of the sentence is the object: it is: "a thick ice cover and the highest average elevation of all the continents"
so the correct answer is "compound subject"
Answer: The list of cities conquered by Sparta and Rome.
The description of how Sparta had held Greece.
The explanation of how Rome dismantled Greek cities.
Answer and explanation:
First, we have the word Athens. Then, we get to know that Athenian is a person from Athens. The final -s has been removed in Athens, and -ian was added. We can assume that -ian is the suffix, therefore. This suffix most likely indicates origin, a person's place of birth. Other words that use the same suffix and that indicate the origin of someone are: Parisian (Paris), Brazilian (Brazil), Italian (Italy), Argentinian (Argentine), among others.
B. Traverse
Normally, a speaker would use the word "move" as in "move forward" instead of "traverse forward"