Answer:
It introduces dangers that are not visible.
Explanation:
this setting detail advance the plot by introducing danger that are not visible that is the dog did not want to go. It hung back until the man shoved it forward, and then it went quickly across the white, unbroken surface. Suddenly it broke through, floundered to one side, and got away to firmer footing. It had wet its forefeet and legs, and almost immediately the water that clung to it turned to ice.
Their items could be delivered quickly and efficiently. The railroads could also be all over the area and the train could travel from one place or another and deliver the necessary items to those companies.
question (2) Marginal Cost = Change in cost / Change in quantity
= 400 / 100 = $ 4
Q(3) Marginal Benefit = $500-$100 = $ 400
Q(4) Marginal benefit of 2 bags of seeds = $ 1000-$200 = $ 800
Q(5) Marginal Benefit of 3 bags of seeds = $ 1500-$300 =$ 1200
If he is being rational,maximum number of bags = depends on land available
If it occurred in the years 1915 and 1935, the most significant event in the America history was that women granted the right to vote :)
