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Components of the Environment and interrelationships — Social Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7Social ScienceComponents of the Environment and interrelationships2 Marks
Question
What is called 'air pollution' ?
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Answer

When the gas or fume released (emitted) by industries, mills, factorics, thermal power plants, ctc. mixes with the atmosphere, it is called 'air pollution'.

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