Cumulative Exam — Cumulative exam Answers

Which of the following is not a typical pattern found in the Earth system?a.rock cycleb.water cyclec.carbon cycled.calcium cycle

Why is water considered to be abiotic?

Pollution in the _______ will have the greatest effect on human health.a.troposphereb.stratospherec.mesosphered.thermosphere

Which of the following is not a manmade cause of global warming?a.burning fossil fuelsb.deforestationc.respirationd.population growth

Which of the following lists the levels of organizational hierarchy from most complex to least complex?

Which of the following statements about erosion is true?a.Erosion occurs as a result of drastic changes in temperature.b.Erosion occurs when wind or water moves over sediment, soil, or rocks.c.Physical and chemical are the two types of erosion.d.Movement is not required for erosion to take place.

Which of the following is an aspect of the elastic rebound theory?a.Energy built up when plates try to get past each other is released when plates break free.b.Fault zones are often located near major population centers.c.Earthquakes occurring along subduction zones cause tsunamis.d.None of the above are aspects of the elastic rebound theory.

Scientists use specific levels of organization to analyze the biosphere. Which level of organization describes a school of anchovies? School of Anchovies

Which of the following could cause a habitat change?a.introduction of an invasive speciesb.a wildfirec.a mudslided.all of the above

Desalination has no known negative impacts on the environment.

Which of the following two cycles are the most closely related in their role in sustaining life?a.carbon and nitrogenb.water and nitrogenc.carbon and oxygend.nitrogen and phosphorus

Which of the following statements about water policy is true?a.The United States does not regulate water quality.b.Policies regulating water pollution and water quality have eliminated environmentalists concern about water.c.Current laws in place about water policy would eliminate water quality problems if they were enforced.d.The Clean Water Act has helped reduce water contamination, but further efforts are needed to maintain water quality.

What is likely to happen to a healthy population that is experiencing exponential growth?

Volcanoes, tsunamis, and earthquakes occur as a result of continental shifting.

Fluctuations in the phosphorus cycle in aquatic ecosystems _______.a.can lead to changes in the growth rates of aquatic populationsb.are never caused by human impact on the environmentc.lead to a decrease in the amount of phosphorus found in sedimentd.never occur naturally

Human impact on one system leads to changes in more of Earth’s systems.

Hyenas and lions have fierce battles over food. Which type of relationship does this describe?

Which is a difference between the Paleozoic and Mesozoic era?

Which type of process occurred in the ecosystem that was affected by the 1988 fires in Yellowstone Park, which destroyed most of the vegetation but left the soil intact?

Which of the following changes to waterways is only the result of human activity?a.erosionb.temperature fluctuationsc.floodingd.chemical pollution