What physical factors can the accumulation of coral and sediment change in the environment?
a. Ocean temperature and current patterns
b. Availability of food
c. Salinity
d. Density
ANS: A
Communities can slowly modify the physical factors in their environment. Corals and sediments can
change the flow of currents which, in turn, changes other aspects of the environment. Information can
be found in the section Marine Communities Change as Time Passes.
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A fundamental geologic principle holding that sedimentary rocks in a vertical sequence formed
one on top of the other so that the oldest layer is at the bottom whereas the youngest is at the top:a. principle of cross-cutting relationships b. principle of original horizontality c. principle of inclusions d. principle of lateral continuity e. principle of super position
Aside from cumulonimbus clouds that sometimes penetrate into the stratosphere, all clouds are observed in the lower atmosphere
a. True b. False
Several Pacific countries have used the information technology revolution, sometimes in corrupt ways, to generate revenue
a. True b. False Indicate whether the statement is true or false
Which of the following measures do environmentalists suggest may be necessary in order for humans to live in a sustainable manner?
A. All of the answers listed here B. Conserve resources C. Reduce per capita consumption of resources D. Develop renewable energy resources E. Stabilize the population