How does importing coal contribute to pollution?

a.
If the U.S. did not import coal, it would have to use alternative fuel methods.
b.
Fuel is used to transport the coal, which contributes to pollution.
c.
Shipping coal overseas causes water pollution from coal spills.
d.
All of the above


Please select the best answer from the choices provided

A
B
C
D

1 answer

The best answer is D. All of the above.

All of the options listed contribute to pollution in different ways associated with the importation of coal.