State which of the foa) icle/g)k 9zllowing is not a greenhouse gas.

  Figure: Atmospheric carbon dioxide levels k xedf- uj)l4 e: 12omt*y2jv1bu w-my

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 pioe1h2itz7xm( 9 7zin-t. bicauses 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 greenhouse efu,dd/3ydpfjn,r c 89f fect

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

  Identify an effect of rising atmospheric car9bjoqst u5mnx4 (e:8w bon dioxide concentrations on marine ecosystemsj os4mb9qnxe 85(twu: .

  State which is not true regarding greftjhy:vef prg/8mf0p: ( +z5t9n rib4enhouse gases.

  Figure: Permafrost and ic9q3j9cjgnfh (xo:cbft0 w: b0e showing 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 poten4hm6wmp o;;x 6paw 1nyt 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 in the 7qv3le 3 xfs 5kjfj*j5future. List some consequences of glob f33jl7v 55xkfj*jes qal 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 effecv9d+3) tv ob;jt9 chz,lp c0jst

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 followin o rjm2mm4l-t1vw-g)fg characteristics describe the process of climate chamfgl2)m wo1j-m -tvr4nge.

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 climr ck- ks 5ei)0r1e+n :es,vowlate 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 effectsu z873gbttv-s of air 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 descr9d ejjyif xp/6q+ y:sin8l;/eiptions is correct.

  Determine which of the following statements is xkd*+6et-(te 2ee eb znot true.