Questions And CORRECT Answers
The greatest human impacts to the oceans occur __________.
along the equator
in the middle of the Pacific Ocean
in the polar regions
along the shorelines of highly populated areas - CORRECT ANSWERS along the shorelines of
highly populated areas
Which of the following has/have harmed the oceans around Britain's shores?
fishing
tourism
shipping
All of the listed responses are correct. - CORRECT ANSWERS All of the listed responses are
correct.
Where would you go on Earth to find ocean waters least impacted by humans?
the coastlines of China and Japan
the northern half of the Pacific Ocean
the east coast of the United States
the waters of the polar regions - CORRECT ANSWERS the waters of the polar regions
Which one of the following statements is true?
Climate change is causing decreases in global ocean temperatures.
, The levels of industrial pollutants in the oceans continue to rise.
Antarctica is the only region of the Earth that has not been impacted by human activities.
Sea life is still flourishing in some places. - CORRECT ANSWERS Sea life is still flourishing in
some places.
In Cedar Key Florida, the freshwater aquifer used for the city water supply is continuous with the
seawater surrounding the island. In which of the following situations is saltwater intrusion most likely to
occur?
reduced use of city water through conservation efforts and unusually high rainfall throughout the year
increased use of city water and unusually high rainfall throughout the year
reduced use of city water through conservation efforts and unusually low rainfall throughout the year
increased use of city water and unusually low rainfall throughout the year - CORRECT
ANSWERS increased use of city water and unusually low rainfall throughout the year
Why do city water departments first remove dissolved organic substances before disinfecting with
chlorine?
Chlorine will not react with bacteria and viruses if dissolved organic substances are present.
Dissolved organic substances remove all the chlorine from the water before the chlorine has a chance to
affect bacteria and viruses.
Chlorine will only react with bacteria and viruses if the water is clear.
Carcinogens may be created by reactions between chlorine and dissolved organic substances. -
CORRECT ANSWERS Carcinogens may be created by reactions between chlorine and dissolved
organic substances.
The primary effect of thermal pollution on aquatic ecosystems is ________.
increased evaporation
causing a large increase in plant productivity
depleting dissolved oxygen