It meant that Northerners in free states were obligated, regardless of their feelings towards slavery, to turn escaped slaves who had made it North back over to their Southern masters.
I believe the answer is: <span>The pasteurization process heats foods to kill pathogenic microorganisms and reduce the total number of bacteria
The pasteurization process was first introduced by </span><span> by Louis </span>Pasteur in 1864 because at that time, the milk that sold in the stores did not passing proper sterilization process. This cause many people to develop various disease form the milk such as typhoid fever<span>, </span><span> </span>diphtheria<span>, and </span>brucellosis<span>.</span>
When entering an expressway from the acceleration lane, drivers should adjust to a speed that will allow he or she to safely merge into an opening in traffic by the end of the acceleration lane.
There is no specific speed to accelerate to, you simply have to make good judgments as to what speed will allow you to safely merge into traffic.
