Valley

ValleyThe ぼ it is the ち) With, around mountain region, it is lower than around level topography.

With the originAttack valleyWithStructural valleyTo be classified, as for the structural valley撓 tune valleyWithFault valleyIt is classified.

Attack valley
StratumAnd stones and rocks is soft selectiveAttackBeing done, those which become lower than around.
撓 tune valley
撓 tuneThose which it is possible with action.
Fault valley
fault. Is with a thing and those only of one side where both sides become the fault. In central part lake.

The main valley of Japan

Main valley of the world

 

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