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CHEMISTRY

JAMB 2004 - Question 17

Chemistry 2004 JAMB Past Questions - Question 17: A carcinogenic substance is

Choose the correct answers from the options given.

A carcinogenic substance is

A: asbestos dust

B: sawdust

C: nitrogen (II) oxide

D: carbon (II) oxide

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Correct Answer

Explanation

A carcinogenic substance is any substance or agent that has the potential to cause cancer. Carcinogens can be found in various forms, including chemicals, radiation, and certain biological agents. Exposure to carcinogens over time may lead to genetic mutations or other changes in cells, which can contribute to the development of cancer.

Carcinogens can be classified into different groups based on their nature and the evidence supporting their carcinogenicity. Some common examples of carcinogenic substances include certain chemicals like tobacco smoke, asbestos fibers, benzene, formaldehyde, and certain types of radiation such as ultraviolet (UV) rays and ionizing radiation.

It's important to note that the level of risk associated with a carcinogenic substance can depend on factors such as the dose and duration of exposure, as well as an individual's genetic susceptibility. Regulatory agencies around the world, such as the International Agency for Research on Cancer (IARC), evaluate and classify substances based on their potential to cause cancer, and this information is used to guide public health policies and regulations.