The area that underlies the shallow water bordering continents is called the ________
A) bathymetric zone
B) surface zone
C) pycnocline
D) continental shelf
E) topographic shelf
D
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The UNFAO has demonstrated that forest loss has slowed but ________
A) there will be no forest ecosystems left by 2040 B) all nationally owned forests should be managed by clear-cutting C) to protect forest biodiversity, forested public lands should be closed to recreation D) deforestation is now in equilibrium with new planting E) we still lose forests at the rate of 5.2 million ha/yr
Which of the following is an example of a nonrenewable resource?
A) carbon dioxide B) human capital C) soil D) timber E) water
Which of the following is NOT an adaptation to living in periglacial regions?
A) Raised oil pipelines above the frozen ground B) Buildings placed directly on frozen, hard surfaces C) Enclosed water and sewage lines D) Careful maintenance of rail tracks and roadbeds in the summer
________ ozone is harmful, damaging plants and human health while ozone at the ________ level screens out mutagenic ultraviolet radiation.
A. Thermospheric; mesosphere B. Stratospheric; mesosphere C. Tropospheric; stratosphere D. Stratospheric; troposphere E. Mesospheric; thermosphere