Mari0aaayunise Mari0aaayunise

23-02-2017
Health

contestada

Black lung disease is most commonly a result of _________.
a. strip mining
b. mountaintop removal
c. underground mining
d. oil refining

Respuesta :

Loquita253 Loquita253

23-02-2017

Black lung disease is most commonly a result of underground mining.

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