Which of the following atmospheric aerosols can be found in the stratosphere?
A. sulphate aerosols
B. smoky soot
C. soil dust
D. automobile emissions
Answer: A
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Which of the following is not characteristic of Rift valleys
A. They contain deep elongated lakes B. They are static and no longer show rifting activity C. They have volcanic activity along their margins D. The Red Sea is an example of a Rift Valley
To avoid negatively impacting food production and marketing resulting from routine shipments of food to regions of chronic hunger, the World Food Program targets
A) tropical regions where food shortages are associated with high rates of infectious disease. B) countries with good forms of transportation to allow better distribution of food. C) emergency situations and then purchases most of the food within the region where it is needed. D) agricultural programs and purchases seed, fertilizers, and pesticides to encourage local farming.
Shadow pricing could be used to estimate the
A) deterioration and replacement costs of materials. B) reduced cost of providing health care. C) cost of cleaning up an oil spill. D) value of an endangered species of plant.
In an acid-base equilibrium the equilibrium lies in the direction which favors which species?
A) the stronger acid B) the weaker base C) both a and b D) neither a nor b