CBSE Class 6 Science
Question 8 of 10
Methods of Separation in Everyday Life — Question 8
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Question During the COVID-19 pandemic, all of us wore masks. Generally, what materials are they made of? What is the role of these masks?
Masks are generally made of multiple layers of fabric or materials such as cotton, polypropylene, or polyester. Their role is to filter out harmful particles, including viruses, from the air we breathe, similar to how filtration processes work to remove impurities from liquids.