Agenda 21 was an agreement by
A. 300 nations to limit trade in endangered species in 1985.
B. 90 nations to enhance global biodiversity in 2000.
C. seven nations to halt CFC production in 1987.
D. 178 nations for comprehensive sustainable development in 1992.
Answer: D
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During parts of the Late Paleozoic the northern hemisphere continental masses were glaciated
a. True b. False
Mid-latitude cyclones
A) typically last a month or more. B) do not really have the characteristics and behavior ascribed to them by the theory of cyclogenesis. C) rarely travel more than a few hundred kilometers. D) often bring substantial changes in wind and temperature.
Stresses of equal magnitude that are offset and oriented in opposite directions are:
a. normal stresses b. compressive stresses c. shear stresses d. tensile stresses
Match the silicate structure with the appropriate mineral example
A) Muscovite B) Amphibole C) Olivine D) Pyroxene E) Quartz 1) Independent tetrahedra 2) Single chain 3) Double chain 4) Sheet 5) Network