Question

Trains now are mostly powered by diesel engines instead of steam engines. This is evidence of the greater influence of which fossil fuel over the other?(1 point) Responses coal over petroleum coal over petroleum petroleum over coal petroleum over coal natural gas over petroleum natural gas over petroleum coal over natural gas coal over natural gas

Answer 1

The transition from steam engines to diesel engines in trains is evidence of the greater influence of petroleum over coal. Therefore, the correct response is:

**petroleum over coal**.