Chemistry for our environment

Which of the following is a primary pollutant released from car exhaust?

• Carbon dioxide

• Nitrogen dioxide

• Water vapour

• Oxygen

Which gas is mainly responsible for acid rain formation?

• Carbon monoxide

• Nitrogen gas

• Sulfur dioxide

• Methane

Which of the following is a consequence of water pollution caused by nitrates from fertilizers?

• Increased oxygen levels

• Eutrophication

• Decreased algae growth

• Water becoming alkaline

How can carbon monoxide poisoning be dangerous?

• It reduces the ability of blood to carry oxygen.

• It irritates the lungs, causing asthma.

• It dissolves in water to form acid rain.

• It causes excessive plant growth in lakes.

What is the main environmental impact of deforestation?

• Decrease in greenhouse gas emissions

• Decrease in soil erosion

• Decrease in biodiversity

• Increase in oxygen production

What is the primary environmental concern associated with excessive carbon dioxide emissions?

• Acid rain

• Depletion of the ozone layer

• Global warming

• Eutrophication

Which of the following best describes the role of a catalytic converter in a car?

• Filters out sulfur dioxide

• Reduces carbon dioxide emissions

• Converts harmful gases into less harmful substances

• Absorbs nitrogen gas from the air

What pollutant is most commonly linked to the depletion of the ozone layer?

• Carbon dioxide

• Nitrogen dioxide

• Chlorofluorocarbons (CFCs)

• Methane

Which of the following would be the most effective way to reduce water pollution from agricultural runoff?

• Using more pesticides

• Implementing buffer zones with vegetation

• Increasing the use of chemical fertilizers

• Reducing the use of crop rotation

What effect does acid rain have on aquatic ecosystems?

• Increases biodiversity

• Raises the pH of the water

• Decreases biodiversity by lowering pH

• Makes water more alkaline