El Nio Southern Oscillation (ENSO) is responsible for worldwide climate fluctuations. Why is the fishing economy of Peru greatly affected by these fluctuations?
a) Cold, nutrient-poor water has covered the warm, nutrient-rich waters near Peru's coast.
b) The La Nia is a cool phase that decreases fisheries.
c) Monsoons in the North Indian Ocean cause a decrease in Peru fisheries.
d) Cold, nutrient-rich upwelling waters that facilitate the fisheries were covered by the warm, nutrient-poor waters of El Nio.
Question 2
Which of the following is NOT a reason that corals are rarely found near rivers?
a) corals are intolerant of reduced salinity caused by river water
b) corals are intolerant of reduced sunlight caused by river water turbidity
c) corals are intolerant of suspended particles in river water that interfere with their ability to filter feed
d) corals are intolerant of lower temperatures caused by river water
e) corals are better adapted for environments with low nutrient loads, so they do not do well where river waters bring high concentrations of nutrients
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