The earth's radiation balance involves
A. most energy emitted directly into space with no interaction with the atmosphere.
B. most energy leaving the earth in the form of longwave radiation.
C. energy being radiated only upward into space.
D. conduction and convection emitting energy directly into space.
Answer: B
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Infant mortality rates are lowest in which of the following areas?
A) Western Europe B) Africa C) Asia D) South America
Along with the pH scale, there is the pOH scale, which indicates the level of "basicity" in a solution. Accordingly, pOH = -log[OH-]. What is the sum of the pH and the pOH of a solution always equal to?
A) the negative of the product of the hydronium and hydroxide ions B) the negative log of Kw, which is 14 C) The sum would equal 7, since that would be neutral for pH and pOH. D) It is not constant because it depends on the acid/base solution in question.
Stratovolcanoes have relatively steep sides because ____
a. ?they are composed of compacted ash b. ?they are composed of strong basalt with little ash c. ?their magma has moderate viscosity so lavas flow a short distance before cooling d. ?their explosions are fast and catastrophically explosive e. ?they grow slowly, as new magma pushes them higher, often without eruption
Criticisms of neoclassical economic theory include all of the following EXCEPT
A) it has a lack of historical or social context. B) this theory does not represent consumption as a social act as well as an economic one. C) it assumes that people's choices don't affect each other. D) humans generally act rationally in economic matters. E) it is difficult to reduce social problems to individual causes and solutions.