Why is 70% isopropyl alcohol is more effective than the 99% isopropyl alcohol against COVID-19?
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becaus e of its alchol is the only substance which cures ma ny diseases
Explanation:
the alchol mixed with ethanol and other items gives it a molecular 2/1 ration of insulation to gases such as nitrogen and zinc as brochure it underlies so its easy to clear the bacteria among the hand
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