12. ਊਰਜਾ ਸੁਰੱਖਿਅਣ ਨਿਯਮ ਦੀ ਪਰਿਭਾਸ਼ਾ ਦਿਉ।
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Answer:
Define energy conservation law.
Explanation:
Law of Conservation of Energy
It states that energy can neither be created nor destroyed, but it can be transformed from one form to another. The total energy before and after the transformation remains the same
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