Carbon Footprint and Atmospheric Pollutants Quiz
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5 questions, one answer each
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1. What is a carbon footprint?
- A. The mass of carbon dioxide released by a car in one journey
- B. The total greenhouse gas emissions over the full life cycle of a product, service or event
- C. The amount of carbon stored in fossil fuels
- D. The percentage of carbon dioxide in the atmosphere
2. Which pollutant is described as toxic, colourless and odourless?
- A. Sulfur dioxide
- B. Carbon monoxide
- C. Particulates
- D. Oxides of nitrogen
3. Which two pollutants are most closely linked with causing acid rain?
- A. Carbon dioxide and water vapour
- B. Carbon monoxide and particulates
- C. Sulfur dioxide and oxides of nitrogen
- D. Unburned hydrocarbons and soot
4. What effect do particulates (soot) have on the atmosphere?
- A. They cause global dimming
- B. They increase oxygen levels
- C. They neutralise acid rain
- D. They cause the ozone layer to thicken
5. A car engine is running with a restricted air supply. Based on this, which two pollutants are most likely to increase, and why?
- A. Sulfur dioxide and oxides of nitrogen, because less oxygen increases nitrogen reactions
- B. Carbon monoxide and soot, because incomplete combustion occurs without enough oxygen
- C. Water vapour and carbon dioxide, because combustion is more complete
- D. Particulates and oxygen, because oxygen is being produced instead of used