This same natural process becomes a nuisance aka body odour, when perspiration/sweat encounters bacteria on the skin. Dr Pai insists, sweat itself does not smell, but coupled with the dead skin cells, it provides a medium for the bacteria to grow. This bacteria, breaks down the sweat causing unpleasant body odour..
Abiotic Factors: : are non-living physical and chemical elements of an environment. These factors are important for the survival of the organisms of that environment. (See biotic factors. ).
An abiotic factor may be an increase in water pH caused by increased sulfuric acid levels due to acid rain. Biotic factors are living creatures or their remains that have an effect on a given situation. Abiotic factors are nonliving, nonorganic items that have an effect on a given situation. For instance, in describing the loss of frogs from a pond, a biotic factor may be the introduction of a non-native species that hunted the frogs to local extinction. An abiotic factor may be an increase in water pH caused by increased sulfuric acid levels due to acid rain.