The "dirtiest" type of fuel is
A) coal.
B) oil.
C) natural gas.
D) nuclear fuel.
E) wood.
Answer: A
The "dirtiest" type of fuel is
A) coal.
B) oil.
C) natural gas.
D) nuclear fuel.
E) wood.
Answer: A
A) coal.
B) oil.
C) natural gas.
D) nuclear fuel.
E) wood.
Answer: A