State which of the follow7wz lpxox650u ing is not a greenhouse gas.

  Figure: Atmospheric carbon d;ik 7x3ks e*sbioxide levels

The above data obtained from Mauna Loa show trends in atmospheric $CO_2$ concentrations. Suggest a conclusion that can be made from this graph.
I.
There is an annual fluctuation of carbon dioxide concentration in the atmosphere.
II.
There is a continuous increase in the average concentration of carbon dioxide in the atmosphere over the years.
III.
Increased use of fossil fuels has caused an increase in carbon dioxide in the atmosphere as recorded in Mauna Loa.

  Figure: Public opinions on the causes of ,xqeu; vzd9 6tclimate change


Use the Figure to identify which of the following countries has the lowest percentage of its population that deny climate change is happening.

  Figure: Feedback loop for the greenhouse effeu6)ve+p a* wslj3ov 9c l+/dyuct

State which of the following correctly describes the feedback type shown in the loop.

  Identify an effect of rising atmospheric carbongl, 4r-xet 8bsoc;/ u 0qrvl2b dioxide concentrations on marine e- rbv,er bls28qgo ;uxc0t/l 4cosystems.

  State which is not true regxp (dg:vi i*fw6;a. oc p8thj0arding greenhouse gases.

  Figure: Permafrost and ice showing crack8 z hi057hhnons


Scientists have been studying the effects of global warming for some time now, and are worried about the thawing of frozen ice and permafrost in the Arctic region. The image above was taken from a helicopter and shows the crack pattern in permafrost.

Suggest what may be of concern to scientists.
I.
There is frozen organic matter in the Arctic which contains ancient bacteria and viruses.
II.
With the thawing of ice and organic matter, more carbon dioxide will be released into the air.
III.
The melting of permafrost in the Arctic will cause the release of methane.

  Describe the emissions z ud,p,22mybm3tx-l hof methane, a potent greenhouse gas.

I.
Methane is emitted during the extraction of natural gas, coal and oil.
II.
Methane is released into the atmosphere from cattle farms and other agricultural practices.
III.
Methane is short-lived in the atmosphere and is converted to carbon dioxide and water.

  Scientists predict that global warming will have devastating effects iptu-q a4n4-s sn the future. List so4sst-n4q u-p ame consequences of global warming.

I.
Coastal flooding and loss of coastal cities
II.
Bleaching of coral reefs
III.
Increased spread of tropical diseases

  Figure: Energy flow showing the greenhouse effec011cx pk 0 zerv+ldx2wt

Identify which of the arrows in the figure represent energy that has no impact on the greenhouse effect.

  
Suggest an explanation for the annual fluctuations of carbon dioxide in the atmosphere.

  Identify which of the following characte +u di;e 4fxuso1hi28yristics describe the process of climate 1+;ouxf iye8s24 idhuchange.

I.
It occurs naturally.
II.
It is influenced by fluctuations in the sun’s energy.
III.
It is affected by the amount of greenhouse gasses in the atmosphere.
IV.
It can describe a change over both very short and very long periods of time.

  Figure: Public opinions on the causes of climate cha:c7,l di0 bwhange

The current population of Canada is about 39,000,000. About 5,000,000 would be too young to be considered for an opinion.

Estimate how many Canadians do not think climate change is mostly caused by humans.

  Figure: Causes and effects of air pollutiocct/1oq:yckhw 7i14tne ufm -;vt ,,fn
Identify the two chemicals shown in the Figure that are also significant causes of the greenhouse effect and climate change.

  Deduce which of the following sets ofbw5huauj079s7/s d7( /p el:liup imb descriptions is correct.

  Determine which of the follow 1)s- cd7864z f;7bxv srfyv.ca efjjeing statements is not true.