What are some of the harmful effects of UVB rays mentioned in the video?
Revolutionizing Sun Protection: Nanotechnology in Fabric Development

Interactive Video
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Architecture
•
KG - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They have no effect on humans.
They enhance vitamin D production.
They improve skin health.
They cause skin cancer and cataracts.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes the UV absorber developed by the Nanotechnology Center unique?
It changes the color of the fabric.
It works even after multiple washes.
It is more expensive than regular clothing.
It is only available in Hong Kong.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much more protection does the UV absorber offer compared to untreated clothing?
Five times more
Ten times more
Twenty times more
Fifty times more
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the cost to treat an entire outfit with the UV absorber?
20 Hong Kong dollars
1 Hong Kong dollar
5 Hong Kong dollars
10 Hong Kong dollars
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a notable feature of the UV absorber regarding the fabric's properties?
It makes the fabric heavier.
It does not change the fabric's design or quality.
It makes the fabric waterproof.
It alters the fabric's texture.
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