El Niño events occur when winds over the Pacific Ocean change direction and cause upwelling of cool, nutrient rich water along the Pacific coastline
a. True
b. False
Indicate whether the statement is true or false
False
RATIONALE: What is El Niño? It is best understood as a complete reversal of a normal climatic pattern. Normally, winds across the Pacific Ocean blow east to west, helping to promote the upwelling of cold, nutrient-rich water from the depths to the surface of the tropical eastern Pacific. But every few years, usually beginning in December, the winds reverse direction, suppressing the upwelling water and thus raising the surface temperature of the water by as much as 20°F (11°C).
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Rain shadows in mountainous areas are a result of
A) convection. B) orographic uplift. C) frontal uplift. D) adiabatic cooling.
Which of the following is likely responsible for algae bloom in lakes and streams?
A) increased carbon and magnesium B) increased nitrogen and phosphorus C) increased methane and hydrogen D) increased mercury through biomagnification E) increased potassium and carbon monoxide
Which below is not an atmospheric condition conducive to the formation of hurricanes?
a. a region of converging surface winds at the surface b. warm water c. strong upper-level winds d. cold air aloft e. moist, humid surface air
Greater mixing and nutrients from the land cause the coastal areas to generally have higher primary productivity than the open ocean.
Answer the following statement true (T) or false (F)