Answer:
Europe has a huge number of mountains, rivers, valleys, and lakes. The biggest mountain range in Europe is the Alps, found where France, Italy, Switzerland, and Germany all meet.
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The answer would be A, C, B. The most general is asking how mountains form. It is slightly more specific to ask about how underwater mountains are formed. The most specific is asking about a specific mountain in Hawaii.
The basic unit of the society is the family and family living under roof is called a home. It is not of no doubt that everything happening under that roof is a simulation of bigger economic systems. The budgeting and allocation of the supplies and demands can be patterned on a much larger scale.