Understanding Pollution and Contamination Quiz

Non-biodegradable pollutants easily break down into simpler and harmless products.

Smog is an example of a non-biodegradable pollutant.

Point source pollution refers to pollution that comes from a single identifiable source.

Bio-degradable pollutants are broken down by the activity of micro-organisms.

Examples of non-biodegradable pollutants include various insecticides and other pesticides.

Sewage treatment plants are examples of sources of non-point source pollution.

Polluted substances necessarily cause harm due to their higher concentration.

Contaminated substances do not necessarily cause harm despite their higher concentration.

Soil can be polluted but not contaminated.

Quantitative pollutants are substances that are not normally present in the environment.

Primary pollutants are substances directly emitted from a source and remain in that form.

Secondary pollutants are formed by chemical reactions between primary pollutants and environmental constituents.

Using industrial effluent as a water source for crops can lead to soil and water pollution.

Petroleum spills can improve the quality of soil for further cultivation.

Radioactive pollutants fall under the category of organic pollutants.

Dioxins and furans are compounds that degrade quickly in the environment.

Phthalates are used as plasticizers in large quantities.

Burning coal and fossil fuels does not contribute to the spread of Polycyclic Aromatic Hydrocarbons (PAHs) on soil in urban areas.