Question

How does sulphur occur?

Answer 1

Sulphur occurs naturally in the environment and is the thirteenth most abundant element in the earth's crust. It can be mined in its elemental form, though this production has reduced significantly in recent years. Since early in the 20th Century, the Frasch process has been used as a method to extract sulphur from underground deposits, when it displaced traditional miningprincipally in Sicily. Most of the world's sulphur was obtained this way until the late 20th century, when sulphur's recovery from petroleum and gas sources (recovered sulphur) became more commonplace. As of 2011, the only operating Frasch mines worldwide are in Poland and since 2010 in Mexico. The last mine operating in the United States closed in 2000. A Frasch mine in Iraq closed in 2003.

Answer 2

Explanation:

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ID ELSE IF LADDER:-The if else if ladder is an extension of the if else conditional branching statement. It is used when we have to check multiple conditions before taking a decision. The if else ladder provides a proper skeleton to check multiple conditions, where every condition has a block of statement within itself.

if(condition expression