Environmental Engineering Reference
In-Depth Information
2.
E
All three are the result of UVB radiation.
3.
B
All five are greenhouse gases, but only CFCs destroy ozone and cause the thinning of the ozone layer.
4.
C
The troposphere will see an increase of UV radiation and, thus, should heat up, not cool down.
5.
D
Cleaning solutions do not contain CFCs, unless they were used with aerosols; most cleaning supplies
are either poured out of a container or sprayed from pump-type bottles.
6.
A
Water vapor is the cause of 80 percent to 90 percent of the natural greenhouse effect. Halons are not
part of the natural greenhouse gases.
7.
E
Based on multiple studies, scientists suggest that habitat loss is the greatest threat to species survival.
8.
D
Removing farms allows segmented land to come together, thus reversing habitat fragmentation.
9.
D
Most fish that are sold at a market are caught by commercial fishing boats, not by sport fishing. All
the other answers are reasons why fisheries have declined.
10.
B
Food is not considered a form of pollution. Air, land, noise, and water are forms of pollution that
may result in the loss of biodiversity.
11.
D
If an invasive species happened to be food for a native species, the population of the native species
would be likely to increase rather than decrease.
12.
C
Choices A and B demonstrate the species approach to saving biodiversity. Choices D and E are part
of the wildlife management approach. Choice C, mapping an ecosystem, is part of the ecosystem ap-
proach to maintaining biodiversity.
13.
A
Although the other four acts may be used to protect specific species, the Endangered Species Act en-
compasses all endangered and threatened species.
14.
D
UVC is not involved in the formation of ozone, while UVA is not included.
15.
B
The Convention on International Trade in Endangered Species of Wild Fauna and Flora, often called
CITES, is the international treaty that was designed to regulate international trade in endangered spe-
cies.
