The value of many natural ecosystem services is most apparent as
A) we appreciate the damages and economic loss that result from the disruption of these ecosystems.
B) new technologies allow us to more fully exploit the natural capital of these ecosystems.
C) research into alternate energy resources continues.
D) new species are discovered and described by scientists.
A
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What evidence seen in the physical environment of a particular area indicate that it was shaped by continental glaciation in the past?
What will be an ideal response?
What is perestroika?
A) greater openness, a policy in the 1980s that encouraged several republics to demand independence B) planned economic restructuring, an early move toward a freer market C) a policy of education improvement, in the last days of the former Soviet Union D) improvement of the Russian environment E) the Russian word for railroad
A mineral's specific gravity and density ____
A)are always different B)cannot be calculated with a small specimen C)are calculated based on the specific gravity and density of denatured alcohol D)change with elevation E)are controlled by its structure and composition
________ was a prominent scientist who advocated the use of an appropriate time scale in analyzing the environmental crisis
Fill in the blank(s) with correct word