What are the significances of plateaus?

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Plateaus are important because of the following reasons: Plateaus are storehouses of minerals. They have rich deposits of minerals. While the African Plateau has huge reserves of gold and silver, Chota Nagpur Plateau in India is famous for coal, iron and manganese deposits.

Explanation:

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.