1) surgical instruments are made up of stainless steel why?
2)we should not hold the bulb of the thermometer while reading the thermometer
3)thermometers should always be washed before use.
4) clinical thermometer are provided with kink .
5)why should we treat factory waste befire duscharging them
6)why do we sneeze when we inhale dust particles.
7)why isn't clinical thermometer used for laboratory purpose
Answers
1)surgical instrument are made up of stainless steel because when they are made up of iron and other metals there is a possibility that they could react with materials inside the body so in order to prevent any reaction and also if a weak metal is used then and it is possible that some part of surgical instrument might break off and get embedded into the body also there are noble metals which do not react easily but still they are not used because they are very expensive like gold and silver
2)when you recorded the temperature in thermometer and when we hold it from the bulb of the thermometer what happens is thermometer starts recording our body temperature and hence we do not get the correct temperature which we have recorded
3) usually the temperature of water is of room temperature also very major somebody's body temperature using thermometer what happens is some part of saliva or sweat gets attached with bulb and when we use it again it might provide the next person with an infection so in order to prevent this it should be washed properly
4) it it prevents the Mercury from falling back into the bulb immediately the recorded temperature can be seen for sometime
5)when we do not treat factory waste before discharging it it causes a lot of pollution if we do not discharge the the waste properly still it will call a lot of pollution treating the factory waste could be like washing out the soot out of the smoke in chimneys thermal power plants also it could be like properly removal of of chemicals that are harmful for or river bodies of water bodies
6)our body has been made nearby perfectly by nature and it does reflex actions to protect itself from one of the such action is sneezing whenever we inhale a dust particles and our brain sensor tell our brain that it's a problem for causing a problem in breathing our brain immediately responses to situation and we sneeze in order to to exit the dust particle which have settled inside
7) our body temperature is is roughly from 36 degree Celsius tu 40 degree Celsius but in laboratory the reactions heat it might be of hundred degree Celsius and more the clinical thermometer are made only to measure body temperature which has a fix range but in laboratory the heat produced by chemicals do not have a fix range and only laboratory thermometer should be used for measuring temperature in laboratory of chemicals
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