____ requires large amounts of energy to produce, so green builders may wish to lower the embodied energy in a structure by reducing the amount of concrete in a foundation as well as the amount of cement in the concrete mix.
A) Limestone
B) Silica
C) Slag
D) Portland cement

Question

Quizplus · Accepted Answer

Portland cement requires large amounts of energy to produce, making it a significant contributor to the embodied energy in construction materials. Reducing its use can lower the overall energy footprint of a building.

____ Requires Large Amounts of Energy to Produce, So Green