Which landform can develop where groundwater dissolves rock?
A. beach
B. sand dune
C. sea stack
D. cave
Answer: D
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Incentive-based environmental regulation approaches uses market forces to encourage businesses to clean up pollution they have already created.
Answer the following statement true (T) or false (F)
Earthquakes are generated by two types of low frequency waves. Indicate whether the statement is true or false
Some regions of Iceland once were covered with forests. However, centuries ago humans logged the trees and grazed sheep on the logged regions, preventing natural regeneration. This situation, in which one ecosystem has now been converted to another, represents
A) a tipping point for this ecosystem with fewer ecosystem services than before. B) the power of natural resilience mechanisms. C) reverse ecological succession. D) a sustainable approach to ecosystem management with a positive feedback loop.
Whether using a food crop as a source of biofuels is environmentally sustainable would depend upon all of the following, except ________
A) the corporate profits that would be made B) the amount of fertilizers used and their impact on aquatic ecosystems C) the impact on food supplies and prices D) the amount of water and land necessary for the crops E) the amount of pesticides used and their impact on biodiversity and groundwater