Question

In pollution, the term 'synergism' is used for

• A. Biomagnification of nondegradable pollutants
• B. Dangerous effect when two pollutants are present together
• C. Decreasing effect to a degradable pollutant
• D. Formation of more potent secondary pollutant from primary pollutants

Answer 1

The correct option is D Formation of more potent secondary pollutant from primary pollutants

Synergism means the process of acting together. In pollution, the synergism is seen when the primary pollutants are less harmful but they combine to form a more potent secondary pollutant. For example, the presence of ozone in the troposphere is undesired and this ozone has come due to the combination of hydrocarbons and nitrogen oxides (both are primary pollutants).

Hence, the correct answer is 'Formation of more potent secondary pollutant from primary pollutants'