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Chapter 46: Q. 20 (page 1369)
The majority of water found on Earth is: a. ice b. water vapor c. fresh water d. salt water
The correct optionn is d. salt water .
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The movement of mineral nutrients through organisms and their environment is called a cycle.
. biological
. bioaccumulation
. biogeochemical
. biochemical
How does the microcosm modeling approach differ from utilizing a holistic model for ecological research?
2. The process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called ________. a. dead zoning b. eutrophication c. retrofication d. depletion
Which of the following approaches would be the most effective way to reduce greenhouse carbon dioxide?
a. Increase waste deposition into the deep ocean.
b. Plant more environmentally-suitable plants.
c. Increase use of fuel sources that do not produce carbon dioxide as a by-product.
d. Decrease livestock agriculture
Carbon is present in the atmosphere as ________. a. carbon dioxide b. carbonate ion c. carbon dust d. carbon monoxide
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