Where is the greatest annual total oceanic primary productivity?
A) rocky intertidal zones
B) in the temperate continental shelves
C) in the northern polar regions
D) productivity is about equal at all latitudes
B
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The abundance of cloudy days in January on the East Coast, particularly the Northeast can be explained by
A) dew point temperatures equaling relative humidity values. B) dew point temperatures being much below air temperature. C) dew point temperatures much greater than air temperature. D) dew point temperatures not being far below air temperature.
Environmental determinism
A) states that culture groups utilize the natural environment as they see fit. B) explains the economic and social conditions in Russia at this time. C) is the simplistic belief that human cultures can be explained as a result of the physical environment. D) is the guiding philosophy of this textbook.
An environmental condition that can cause a natural system to change dramatically is a(n) ____________________
Fill in the blank(s) with correct word
In general, when one views a food chain, they can expect the biomass of herbivores (organisms that eat plants) in an ecosystem to be about _____ of the biomass of the plants and other photosynthetic organisms in the ecosystem.
a. 10% b. 80% c. 50% d. 25% e. 90%