Inswer the following questions:
a) Why do mountaineers suffer from nose bleeding at high altitude?
5) Why threads of gold and silver are used in embroidery works like zardozi or mukaish?
2) Why should we avoid standing close to a tuberculosis patient while he or she is coughing?
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Answer:
1. As the altitude increases the air becomes thinner. The oxygen level also decreases due to which the blood vessels present inside their nose bursts and starts bleeding.
2. To add to the shine and lustre of the cloth.
3. Because tuberculosis is a contagious (communicable) disease and the pathogens may travel through air into your body.
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