Answer:
The correct answer is option b. At higher elevations, it would take longer to hard boil an egg, because there is a lower boiling.
Step-by-step explanation:
When we boil water at a very high temperature, it turns out that the water boils much faster. This is because the higher we are, there will be less oxygen and less pressure in the atmosphere. This implies that the water vapor becomes steam much faster than as it happens at low temperatures, so less heat will be needed for the water to boil.
That is why if we want to cook an egg, we will have to lower the heat of the kitchen when we put it on the fire, in order to avoid boiling water very quickly. Lowering the heat, then cooking the egg will take much longer.
Given this data, the correct answer is option B, At higher elevations, it would take longer to hard boil an egg, because there is a lower boiling.