Answer: b. property different minerals can have the same color
Explanation:
Minerals can be identified by its colour, appearance and luster. However, different minerals might have almost the same color which makes it difficult to identify and distinguish. Further tests needs to be carried out to properly identify a mineral.
The big difference between Eastern Europe and Western Europe is that Eastern Europe consists of countries that once belonged to the Soviet block, unlike the Western half. Economically, the Western Europe nations are much more advanced than the Eastern Europe nations. Western Europe outputs a lot more cash due to a larger free trade and more open economy as a whole.
D! all of the others are commonly used
Answer:
The answer is territoriality.
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