When pressure is increased the melting point of ice A. Increases B. Does not change C. Decreases D. Depends on the impurities in the ice

The correct answer is: A. Increases

When pressure is increased, the melting point of ice increases. This is because the increased pressure makes it more difficult for the molecules in the ice to move around and break the bonds that hold them together. As a result, more energy is required to melt the ice, and the melting point increases.

Option B is incorrect because the melting point of ice does change with pressure. Option C is incorrect because the melting point of ice increases with pressure, not decreases. Option D is incorrect because the melting point of ice does not depend on the impurities in the ice.