Currently, power plants are required to reduce emissions of nitrogen oxides (NOX) and sulfur dioxide (SO2).
Reducing emissions of sulfur dioxide is required of power plants.
Power plants must reduce sulfur dioxide emissions but not nitrogen oxides.
Was it a whale?
The bowl, needless to say, is still in one piece, and it is kept under lock and key at all times.
The dog is playing with a bone.
A man is playing the drums in a band.
The dogs are playing in the grass.
It seemed fake.