Chemistry 2002 JAMB Past Questions - Question 21: The substance least considered as a source of environmental pollution is

Correct Answer

C

Explanation

It's challenging to pinpoint a single substance that is universally considered the least significant source of environmental pollution, as perceptions may vary depending on specific contexts, locations, and individual perspectives. However, certain substances are generally considered to have lower environmental impact compared to others. For instance, water vapor is a natural component of the atmosphere and is not typically viewed as a pollutant in normal concentrations.

In some cases, substances that are less harmful in small quantities or that break down quickly in the environment might be considered less of a concern. However, it's essential to note that any substance, even if considered less polluting, can have adverse effects on the environment if released in large quantities or under certain conditions.

The assessment of environmental pollution often considers factors such as toxicity, persistence, bioaccumulation, and potential for long-term ecological and human health impacts. Different pollutants affect air, water, and soil, and their significance can vary depending on the specific environmental compartment.

It's crucial to approach environmental issues with a holistic perspective and consider the cumulative impact of various substances to effectively address and mitigate pollution.