A 50-year flood has an annual exceedance probability of
A) 50%. B) 5%. C) 0.5%. D) 25%.
B
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Which of the following is the most reasonable conclusion based on the data in the figure?
A) Forest fires and fossil fuel combustion are increasing atmospheric carbon dioxide concentrations. B) There is a great deal of uncertainty in measurements of global atmospheric carbon dioxide levels. C) Carbon dioxide molecules multiply themselves over time. D) Average annual atmospheric carbon dioxide concentrations have been increasing since 1960.
The equatorial currents are driven by
A) monsoon winds. B) the trade winds. C) salinity differences in the ocean. D) polar jet stream. E) the upper-level easterlies.
Which of the following powers tropical cyclones?
A) A density-driven circulation that is initiated at the ocean surface by temperature and salinity. B) An apparent force resulting from Earth's rotation that causes particles in motion to be deflected. C) Heat transfer in a gas or liquid by the circulation of currents from one region to another. D) The vast amounts of latent heat as water evaporates and condenses.
The Hajj is a ________ by Muslims going to ________
A) rite of passage; Medina B) pilgrimage; Mecca C) pilgrimage; Medina D) rite of passage; Jerusalem E) month of fasting; Mecca