What are the affects of burning fuel on human health?\nOptions:\n- (A) emissions\n- (B) They aid lung health.\n- (C) direct damage to the lungs\n- (D) They are a hazard.\n- (E) The affects are mildly healthy\n- (F) The fuel burns clean.\n- (G) Greenhouse gases\n- (H) Global warming
Use reasoning to answer the following question.
(D)
Carbon monoxide is a gas produced by furnaces and other devices that burn fuel.

Carbon Monoxide Carbon monoxide is a health hazard.

Furnaces and other devices that burn fuel are health hazards.

.

The final answer: (D)