___ replaced wood as the fuel used to smelt iron.

the awnser would be coal

Explanation:

hope it helped :]

Coal! Charcoal was the traditional fuel, but the scarcity of wood, from which charcoal was made, combined with an increased demand for charcoal had raised its price significantly

the foundation of greek city-states: following the fall of the mycenaean civilization in the 10th century bc, the area surrounding the empire went through its own mini dark ages. answer and explanation

it increased the power of the king of england.