State which of the following is not a greenhouse gas kkgs+1e1yvd0re3 vo ,.

  Figure: Atmospheric carbon k:g apny):y/pdioxide 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 climate -mkv by 7dmq z32j1c5ly 73mzschange


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 effectqc k,kdrwt742cga *e0

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

  Identify an effect od8w2 i-l1gaqb p no0f.f rising atmospheric carbon dioxide concentrations on marine ecosystems.. aifdpb8g1 no-w02 lq

  State which is not true regarding greenhouse ga7b336owmpkh (pf9kb jses.

  Figure: Permafrost and ice showing y(. ls; w:r4mf mhf7dzr ;6kyscracks


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 po+;z9a3cib vr9y4;n skk kng-ptent 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 e:n ;izgjr(qg zc 9 nghbb1(i+ cgv.6v9ffects in the future. List s1(gn .(b9hgc :6nivcgz+; jvg9b r zqiome 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 effecbcowf-0 c*o 0l kyr3.vt

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 characteristiqy*a)ls 2wui:c p 7fb(cs describe the process of climate chanbi: fq7a)ul (wc*y2s pge.

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 causerec(l ,n(wg. cs 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 air pollu5cm+dave q a, p1csjg+ s4n/;ption
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 setm*v a(+nw s.ers of descriptions is correct.

  Determine which of the follspyz0*4pv w r.owing statements is not true.