Give reasons for the following:
(a) Iron rims are heated red hot before 'fixing' them on cart wheels.
(b) A clinical thermometer has a slight bend, or kink, in its capillary tube.
(c) A new quilt is warmer than an old one.
(d) A brass tumbler feels much cooler than a wooden tray on a chilly day
(e) The bottoms of cooking utensils are often kept black.
Please tell it fast
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a.so they become soft
b.so the temperature can be recorded more accurately
c.it is just taken out of the production
d.it absorbs more cold than wood
e.to hide the burnings by the combustion of fuels
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