State which of the followingfgn m)8larr9s 8rto:)l /b eej679 lyylf--by is not a greenhouse gas.

  Figure: Atmospheric kp/6kbzu;* 0,/ hhwe qrjtna 1wxi o.4carbon dioxide 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 oyqjk h j6;puaxpv66,, 4yi8xbn the causes of climate 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 greenhousmvoo0ftuwe9 x2 f4rs nq8 0h/,e effect

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

  Identify an effect of risin9hj.bcy7)r z tg atmospheric carbon dioxide concentrations on marine ecosc b zh97.jr)tyystems.

  State which is not trpb+s db: x8drvyt- g2k5dzu,) ue regarding greenhouse gases.

  Figure: Permafrost and ice show*713oku ent5v vw5d tging cracks


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 of methane, a potent green0 z yuc4w7m--ye j7dgc vcj06ahouse 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 havef;k4b;k j:93jc -ej(m/c tr+c rtxvrw devastating effects in the future. List som9c mwkf:rtb/4k 3 jr(;jcv j cx+re;-te 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 effect2 x6pa q zw67:2sa.*kglfvmgd

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 characteristics describe the process of clima9pu.n0 gthd .xte chn duh p9.xg0t.ange.

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 opinion3 sy8e8m.biu wifw+d:isqp 5 ,s on the causes of climate change

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 agds8q(h wnh- 6ir pollution
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 of descriptions ih;-,d(,iqbzugq0djn s correct.

  Determine which of the following statements 0;ccv4hlarnw6 ueg :l ,/wy)e is not true.