# QB/b globalWarming 2

< QB

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See special:permalink/1863380 for a wikitext version of this quiz.

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\title{b\_globalWarming\_2}
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Attribution for each question is documented in the Appendix}
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\question The Earth's average surface temperature rose by approximately \_\_\_\_ per decade over the period 1906-2005.\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice 7.0$$^\circ$$C
\choice 0.7$$^\circ$$C
\CorrectChoice 0.07$$^\circ$$C
\end{choices}

\question A rise in the sea level is associated with global warming because\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice ice and snow melts
\CorrectChoice both of these are true
\choice water tends to expand as it warms
\end{choices}

\question What happens when water is heated?\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice it expands at temperatures below 3.98$$^\circ$$C and contracts above 3.98$$^\circ$$C
\CorrectChoice it expands at temperatures above 3.98$$^\circ$$C and contracts below 3.98$$^\circ$$C
\choice it absorbs CO2
\end{choices}

\question No direct method exists that permits an independent measurement of the heat content of the oceans, other than the fact that the air is warming\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice true
\CorrectChoice false
\end{choices}

\question Ocean temperatures are increasing more slowly than land temperatures because oceans have more heat capacity and because evaporation cools the water.\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\CorrectChoice true
\choice false
\end{choices}

\question Ocean temperatures are increasing more slowly than land temperatures because the oceans are absorbing less heat energy from the sun\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice true
\CorrectChoice false
\end{choices}

\question In the twentieth century, the rate of earth's average temperature rise was closest to\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice 0.7 $$^\circ$$C per decade
\choice 0.7 $$^\circ$$C per year
\CorrectChoice 0.7 $$^\circ$$C per century
\end{choices}

\question Compared with the first half of the twentieth century, the rate of earth's average temperature rise during the second (latter) half was \ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice half as much
\CorrectChoice twice as much
\end{choices}

\question Compared with the second half of the twentieth century, the rate of earth's average temperature rise during the first half was\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice twice as much
\CorrectChoice half as much
\end{choices}

\question The urban heat island effect refers to the fact that urban areas tend to be hotter than rural areas.  The urban heat island effect is estimated to account for approximately  \_\_\_\_\_\_ of the temperature rise over the past century.\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice 0%
\choice 30%
\choice 0.3%
\CorrectChoice 3%
\end{choices}

\question Proxy temperatures measurements are defined as indirect inferences gathered from ice cores, tree rings, and so forth\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\CorrectChoice true
\choice false
\end{choices}

\question Proxy temperatures measurements are defined as measurements made using measurements from space.\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice true
\CorrectChoice false
\end{choices}

\question The Reconstructed Temperature (0-2000 AD) plot in "Observed Temperature Changes" shows temperature measurements.  The solid black line represents\ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice tree proxy measurements
\CorrectChoice thermometer measurements
\choice the Little Ice Age
\choice the Medieval Warming Period
\choice a 10 year average
\end{choices}

\question The Reconstructed Temperature (0-2000 AD) plot in "Observed Temperature Changes" shows temperature measurements, as well as what curious feature? \ifkey\endnote{ placed in Public Domain by Guy Vandegrift: {\url{https://en.wikiversity.org/wiki/special:permalink/1863380}}}\fi
\begin{choices}
\choice the Little Ice Age being less prominent than the Medieval Warming period
\choice a divergence between the tree and pollen proxy measurements
\CorrectChoice a tiny gap at the end of the proxy measurements
\choice the fact that the different proxy measurements deviate considerably from the average of all proxy measurements
\end{choices}

\end{questions}
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