English, asked by soumyajitrout27, 26 days ago

हाउ डस नॉइस पॉल्यूशन इफेक्ट ऑन

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Answered by IITakePointsII

Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Answered by Anonymous

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Hey dear your question should be in English !!

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हाउ डस नॉइस पॉल्यूशन इफेक्ट ऑन​

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हाउ डस नॉइस पॉल्यूशन इफेक्ट ऑन