What type of stream valley forms in mountainous areas?
a narrow v-shaped valley
a wide, flat valley
an oxbow lake valley
a floodplain

a narrow V-shaped valley

Explanation:

The type of the stream valleys formed in the mountains depends on the process of the flow of water as such the valleys that are formed are that of the V and U shaped forms and V-shaped valleys are usually found in the hills and the valleys pf the mountain ranges as these areas are affected by glaciers that make a U shaped flat valley bottom.

Exposed great deposits of coal and iron ore

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