1.   A reaction with bacteria produces odor.

2.   Corruption produces an odor, like rotten meat.

3.   Day and night, huge machines in the Basic Vegetable Products plant dry onions and garlic, producing an odor that makes the whole town smell like garlic bread.

4.   In the high humidity of the cave for five days, the two bodies have decomposed considerably and are producing foul odors, several rescuers said.

5.   It has no odor itself, but it may be mixed with other chemicals and the mix can produce an odor.