Based on the Theory of Plate Tectonics, you would expect to find heat flow at the mid-ocean ridge and heat flow at subduction zones when compared to other parts of the crust.

Convectional, hydro thermal

Explanation:

The theory of the plate tectonics suggests that the flow of the heat from the mid-oceanic ridges occurs through the upper part of the mantel. This heat flows in a convective pattern as compared to the heat flow of the subduction zones is the hydrothermal flow and is high than compared to the other parts of the crust.

Developed countries will see a decrease in natural resources, because their population will decrease.