Environmental Chemistry Quiz

What is the study of the environment, its living and nonliving components, and the interactions of these components?

• Physics

• Environmental Science

• Chemistry

• Biology

What is a substance that does not occur in nature but is introduced into the environment through human activity?

• Pollutant

• Contaminant

• Toxin

• Chemical

What is the main source of lead contamination in the atmosphere?

• Deforestation

• Burning of fossil fuels

• Industrial waste

• Volcanic eruptions

What is the primary cause of eutrophication in water systems?

• Nitrate fertilizers

• Phosphate detergents

• Untreated sewage

• Heavy metal ions

Which of the following is a method of reducing water pollution?

• Discharging heat-ladened water into natural water systems

• Increasing use of synthetic fertilizers

• Using excessive amounts of agricultural chemicals

• Recycling industrial and agricultural wastes

What is a common cause of land pollution related to agriculture?

• Urbanization

• Deforestation

• Excessive use of synthetic fertilizers

• Mining

What is the ozone layer considered as in the stratosphere?

• Protective shield from UV-light

• Heat source

• Air pollutant

• Oxygen supplier

What is the main source of nitric oxide in the upper layer of the atmosphere?

• Human activities

• Forest fires

• Dust storms

• Lightning & thunderstorms

What is the role of free radicals in the atmosphere?

• Decrease ozone layer

• Enhance UV radiation

• Neutralize pollutants

• Increase oxygen levels

What is the main cause of soil/land pollution related to waste disposal?

• Deforestation

• Agriculture

• Industrial waste

• Dumping non-biodegradable wastes