HORTICULTURE SCIENCE
APPLICATION OF NANO TECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An atom
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A strand of hair
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a virus
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A bacteria
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Detailed explanation-1: -The size of a human hair strand is about 0.12 mm.
Detailed explanation-2: -What Is Human Hair Made Of? Human hair is made from the protein keratin. Each strand of hair grows from a root located in the base of the hair follicle, which is composed of keratin cells. The keratin that makes up the major part of the hair is formed by amino acids molecules sourced from the food we eat.
Detailed explanation-3: -In 2004, Xie Qiuping of China won the Guinness Record for the longest head of hair. The length was 18 ft and five inches. She had been growing her hair since 1973 when she was only 13.
Detailed explanation-4: -The thickest strand of human hair is 772 micrometres (0.03 inches) and was plucked from the beard of Muhammad Umair Khan (Pakistan), in Lahore, Punjab, Pakistan, as verified on 3 March 2021. The hair was discovered on Muhammad’s chin as part of his beard.