* not completed

. What is the primary component of photochemical smog?

Carbon monoxide correct incorrect

Volatile organic compounds correct incorrect

Nitrogen oxides correct incorrect

Ozone correct incorrect

* not completed

. Which of the following is NOT a major gaseous pollutant from motor vehicles?

Sulphur dioxide correct incorrect

Nitrogen oxides correct incorrect

Volatile organic compounds correct incorrect

Carbon monoxide correct incorrect

* not completed

. In what southern hemisphere season is the ozone hole best developed?

Spring correct incorrect

Summer correct incorrect

Autumn correct incorrect

Winter correct incorrect

* not completed

. The amount of which of the following is increasing in the stratosphere due to the use of halons in fire extinguishers?

Nitric oxide correct incorrect

Bromine correct incorrect

Ozone correct incorrect

Chlorine correct incorrect

* not completed

. Which greenhouse gas has seen the greatest increase in concentration since the eighteenth century?

Nitrous oxide correct incorrect

Carbon dioxide correct incorrect

Methane correct incorrect

CFCs correct incorrect

* not completed

. Which gas has the highest global warming potential?

Carbon dioxide correct incorrect

Nitrous oxide correct incorrect

Chlorofluorocarbons correct incorrect

Methane correct incorrect

* not completed

. Which statement about radiative forcings is false?

Total natural forcings are considerably smaller than total anthropogenic forcings. correct incorrect

There is a simple linear relationship between radiative forcing and temperature change. correct incorrect

The largest negative forcing comes from aerosols. correct incorrect

Forcings are expressed in W/m2. correct incorrect

* not completed

. What is used as a predictor of temperature change?

Global warming potential correct incorrect

Climate sensitivity correct incorrect

Carbon dioxide equivalent correct incorrect

Halons correct incorrect

* not completed

. Which feature is NOT represented in general circulation models?

Topography correct incorrect

Clouds correct incorrect

Ice caps correct incorrect

Ocean coastlines correct incorrect

* not completed

. Which statement about the Kyoto Protocol is false?

Developed countries, as a group, met the emission reduction target. correct incorrect

No emission reduction targets were set for developing countries. correct incorrect

The United States did not sign on to the protocol. correct incorrect

The majority of developed countries saw a decrease in their emissions from 1990 to 2012. correct incorrect

* not completed

. An Air Quality Health Index above 10 indicates a very high health risk.

TRUE correct incorrect

FALSE correct incorrect

* not completed

. The source of nitric oxide is the breakdown of chlorine.

TRUE correct incorrect

FALSE correct incorrect

* not completed

. Methane, carbon dioxide, and CFCs are all long-lived greenhouse gases.

TRUE correct incorrect

FALSE correct incorrect

* not completed

. Water vapour feedback is an example of negative feedback.

TRUE correct incorrect

FALSE correct incorrect

* not completed

. One of the most visible indications that Earth is warming comes from the melting of sea ice and glaciers.

TRUE correct incorrect

FALSE correct incorrect