BSCS Biology: A Molecular Approach

Chapter 25: Change in Ecosystems

Human Interactions with Ecosystems

1.
Open-ocean fisheries, federal grasslands, groundwater, and the atmosphere are called ____ resources.
A)common pool
B)non-renewable
C)dwindling
D)chemical
2.
What percentage of the earth's land surface is now devoted exclusively to human use?
A)11%
B)22%
C)4%
D)7%
3.
Scientists calculate that if we continue on our current course of burning fossil fuels, the average global temperature will be how much higher in 100 years?
A)2 degrees Celsius
B)100 degrees Celsius
C)10 degrees Celsius
D)5 degrees Celsius
4.
This photo shows what global environmental hazard?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078664276/281029/ccq_ch25_q4.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (18.0K)</a>
A)the buildup of ozone in the environment
B)the Antarctic ozone hole
C)the smoke and ash from Mount Saint Helens
D)the site of a meteorite impact
5.
As a species, many of our present activities are widely considered to be ____, and will likely produce serious and undesirable consequences.
A)understandable
B)unacceptable
C)intolerable
D)unsustainable
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