What is the correct response to a sewage backflow in an operation?

In case of food service operation, the mangers need to take an extra care to maintain the hygienic structures, for this, they must be aware of all the conditions going on in the operation.

In case, a food service operation experiences the back flow of the sewage, the operation should be immediately stopped. Sewage water is very unhealthy and the bacteria in the sewage water can cause many types of illness, which can contaminate food.

So, it is very important that all the operations should be stopped immediately, till the sewage back flow is not cured and the area is thoroughly cleaned.

hence, the correct answer is Close the operation.

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.