The foul smell from a body specially during a sultry summer is due to the action of ______ on sweat.

bacteria

The correct answer is Option (3)- bacteria

The foul smell from a body, especially during a sultry summer, is due to the action of bacteria on sweat.

Explanation:

• Sweat itself is odorless and composed mainly of water, with trace amounts of salts and other compounds.
• When sweat comes into contact with bacteria on the skin's surface, particularly in warm and moist environments like during a sultry summer, the bacteria break down the sweat components.
• This breakdown process, known as bacterial decomposition or fermentation, produces certain compounds, such as fatty acids and ammonia, which can have unpleasant odors.
• The presence of these odorous compounds is what leads to body odor, commonly referred to as "sweat smell" or "body odor."
• Regular bathing and the use of antiperspirants or deodorants can help reduce body odor by controlling bacterial growth and masking unpleasant odors.