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"
Explanation:
<em>They </em><em>make </em><em>writing</em><em> </em><em>wordier.</em>
If im not sure it but i think it would be all living things are connected to eachother and, you should not judge things based on how they look
Answer:
Adaptation increases the ability to deal with climate hazards, such as blizzards, or harsh, warm summers.