Q1: Discuss the difficulties faced by the miners while mining gemstones in Pakistan. How do these miners suffer?
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The two main types of pneumoconioses that affect miners are coal workers' pneumoconiosis (CWP), commonly called black lung, and silicosis. ... Other respiratory diseases, such as chronic obstructive pulmonary disease (COPD), may also occur in miners separately from, or in addition to, pneumoconiosis.
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वायुमंडल के संगठन की व्याख्या कीजिए
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