Answer:
Because it is made up of different minerals which are chemically combined.
Explanation:
<span>The Baltic Sea is positioned
in Northern Europe and bordered by Sweden (a part of the Scandinavian
Peninsula), Finland, Russia, Estonia, Latvia, Lithuania, Poland,
northeastern Germany, and eastern Denmark and its numerous islands.
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</span>
D. this is the correct answer because the question is showing a comparison of sizes rather than the actual sizes which eliminates B. A and C have no relevance.
The particles of the igloo are very compact and vibrating slowly because it is a solid at a colder temperature meaning it has less kinetic energy