Question

a) Why do mountaineers suffer from nose bleeding at high altitude?
b) Why threads of gold and silver are used in embroidery works like zardozi or mukaish?
c) Why should we avoid standing close to a tuberculosis patient while he or she is coughing?
d) Give reason why handles of cooking utensils are made of plastic, bcoz they are​

Answer 1

a) mountaineers suffer from nose bleeding at high altitude because the blood pressure is greater than the pressure exerted in the higher altitude d) cooking utensils handles are made of plastics because plastic is a bad conductor of heat and does not allow heat to pass through it