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Question
Agents that bring about an undesirable change in our environment are called as
Agents that bring about an undesirable change in our environment are called as
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Solution
The correct option is B Pollutants
Allergens
Allergens are the substances that cause hypersensitive responses in the human body. Examples include pollen grains, dust are common allergens.
Mutagens
Mutagens are chemicals that cause mutation, that is, they change the chemical structure of DNA by changing nitrogenous bases.
Mutagens can be chemicals, non-ionising rays.
Carcinogens
Carcinogens are agents that can cause cancer in humans.
They can be chemical, biological (viruses) and physical agents.
Pollutants
Pollutants are agents that cause undesirable changes in the environment thus changing the characteristics of land, air, soil, water etc.
Examples of pollutants are unburnt carbon particles that cause air pollution, plastics that cause land pollution.
Allergens
Allergens are the substances that cause hypersensitive responses in the human body. Examples include pollen grains, dust are common allergens.
Mutagens
Mutagens are chemicals that cause mutation, that is, they change the chemical structure of DNA by changing nitrogenous bases.
Mutagens can be chemicals, non-ionising rays.
Carcinogens
Carcinogens are agents that can cause cancer in humans.
They can be chemical, biological (viruses) and physical agents.
Pollutants
Pollutants are agents that cause undesirable changes in the environment thus changing the characteristics of land, air, soil, water etc.
Examples of pollutants are unburnt carbon particles that cause air pollution, plastics that cause land pollution.
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