C. Not only the muffler but also the spark plugs need to be replaced. ☺
Safety and hope
would sybolize
These statistics are essential to plan for the health services. They give an insight of a region's well-being and data to invest into to technological advancements. For instance, informed about the incidence of disease can help our society gather research and resources to prevent it from spreading.
Answer:
It is recommended to use test strips when using the Quat solution because it doesn't always come in the right concentration.
Test strips help to check this. Sometimes, the water with which the solution is being diluted already contains other chemicals which can enervate the potency of the quat. Other times, the Quat itself comes as an already weaken solutions.
Cheers!
