Deck 4: Climate Change

Question 1

Scientists believe they know the average global temperature over the last 160,000 years.Which property of the ice core samples from Antarctica provides this information?

A)The thickness
B)The carbon dioxide concentration
C)The ¹H/²H ratio
D)The temperature

Answer 1

The ¹H/²H ratio

Question 2

Determine the shape or geometry of PH₃.(Hint: Use the Periodic Table to arrive at the electron configuration for phosphorous. )

A)Tetrahedral
B)Trigonal pyramidal
C)Bent
D)Trigonal planar

Answer 2

Trigonal pyramidal

Question 3

Which occurrences or processes are expected to reduce the level of atmospheric carbon?
i.Decaying plant and animal remains
ii.The growth of trees
iii.Formation of carbonate rock in the ocean
iv.Animal respiration

A)i and ii only
B)ii and iii only
C)iii and iv only
D)i and iv only

Answer 3

ii and iii only

Question 4

Which of the following are ways that aerosols may affect climate?

A)Scattering incoming radiation
B)Nucleation of clouds
C)Absorbing incoming radiation
D)All of these choices are correct

Question 5

Which of the following has the lowest albedo?

A)Ocean
B)Fresh snow
C)Old snow
D)Desert sand

Question 6

What international agreement attempted to reduce greenhouse gas emissions?

A)Kyoto Protocol
B)Montreal Protocol
C)Oslo Accords
D)Nuremburg Treaty

Question 7

Methane is approximately 23 times more powerful than carbon dioxide as a greenhouse gas.Which are significant sources of methane emissions?
i.The digestive systems of ruminants (cows,sheep,etc. )
ii.Automobile exhaust
iii.Rice cultivation
iv.Decaying wetland vegetation

A)i only
B)i and ii only
C)ii only
D)i,iii,and iv only

Question 8

If the average temperature of earth is currently 15.0 ^$\circ$ C,what does the NOAA model (the line in the graph) predict for the average global temperature in 2080?

A)2.4 ^$\circ$ C
B)12.6 ^$\circ$ C
C)15.0 ^$\circ$ C
D)17.4 ^$\circ$ C