What is probably the least expensive approach for avoiding shoreline hazards?
A. forbid the building of houses or other structures in high-risk areas
B. bringing in sand to replenish what is lost to storms
C. using private insurance money to rebuild houses destroyed by erosion and waves
D. building up the land level so communities, such as New Orleans, are above sea level
E. using federal disaster money to rebuild houses destroyed by erosion and waves
Answer: A
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The principle of ____________ ____________ is based on the observations of Forchhammer that conclude although
the total amount of dissolved solids in seawater might vary among samples, the ratio of major salts is constant. Fill in the blank(s) with the appropriate word(s).
Organisms are composed of many elements. Which is the least abundant of these?
A)oxygen B)nitrogen C)calcium D)carbon E)hydrogen
The greenhouse effect has affected global climate for millions of years
Indicate whether the statement is true or false
Volcano A erupts rocks with SiO2 content ranging from 49% to 52% whereas volcano B, 100km away, erupts materials with SiO2 content of 62-68%. Which statement best characterizes these two volcanos?
A) Volcano A is probably a shield volcano with typically quiescent eruptions, whereas Volcano B is likely a stratovolcano characterized by violent, explosive eruptions. B) Both volcanos are violent, explosive volcanos that spread ash continent wide. C) Volcano A is likely to be a supervolcano with violent eruptions, whereas volcano B is probably a shield volcano with quiescent eruptions. D) Both volcanos are shield type volcanos that are characterized by quiescent eruptions.