2018
Download

1. Which of the following are ozone depleting substances?
- Chlorofluorocarbons (CFCs)
- Hydrofluorocarbons (HFCs)
- Hydrochlorofluorocarbons (HCFCs)
- Carbon dioxide (CO2)
- Both a. and c.
2. What is an ozone molecule formed from?
- 3 oxygen atoms
- 3 carbon dioxide atoms
- 2 carbon dioxide atoms
- 2 hydrogen atoms and 1 oxygen atom
3. What is the name of the international agreement committing parties to phasing out ozone depleting substances and phasing down hydrofluorocarbons (HFCs)?
- Vienna Protocol
- Montreal Protocol
- Paris Agreement
- Antarctic Convention
4. What is global warming potential (GWP)?
- The effectiveness of an air conditioning system. The higher the global warming potential, the better the system at heating a room but the worse at cooling a room.
- A measure of the amount of heat trapped in the atmosphere by a certain mass of gas compared to the amount of heat trapped by a similar mass of carbon dioxide.
- The net contribution of Antarctic wildlife to synthetic greenhouse gas emissions.
- The global temperature rise scientists predict would occur without the phase-down of synthetic greenhouse gases.
5. What is the (approximate) global warming potential (GWP) of hydrofluorocarbon HFC-134a?
- 130
- 2200
- 1430
- HFC-134a does not have a global warming potential.
6. Which of the following have ozone depleting substances and synthetic greenhouse gases commonly been used for?
- Asthma puffers
- Refrigerators and air conditioners
- Propellants in aerosol products
- All of the above
7. What is the difference between synthetic greenhouse gases and other greenhouse gases?
- Greenhouse gases are found in greenhouses, synthetic greenhouse gases are not.
- Greenhouse gases occur naturally and through human activity, synthetic greenhouse gases only occur through human activity.
- Synthetic greenhouse gases all contain silicon, other greenhouse gases do not.
- Both a. and b.
8. How much ozone can one kilogram of halon 1211 destroy?
- 1 kilogram
- 100 tonnes
- 50 kilograms
- 50 tonnes
9. Which of the following can still legally be produced in Australia?
- Hydrofluorocarbons (HFCs)
- Hydrochlorofluorocarbons (HCFCs)
- Chlorofluorocarbons (CFCs)
- Both a. and b.
10. When do scientists predict the ozone layer will heal and return to pre-1980 levels?
- Between the years 2050 and 2065
- By the year 2030
- Between the years 2080 and 2090
- By the year 3000
Click on a heading below or Show all | Hide all
Answers
1e, 2a, 3b, 4b,5c, 6d, 7b, 8d, 9a, 10a