How does pollution affect marine life?a.Pollution causes a decrease in phytoplankton populations and therefore a decrease in the occurrence of algal blooms.b.Pollution causes destruction of coral reefs, which are important sources of shelter and breeding for marine animals.c.Soaps, detergents, and plastics in the ocean decrease the acidity of ocean water, leading to a decrease in carbonate levels.d.Pollution affects organisms close to the shoreline, but does not affect marine organisms far from the shore.
How is an oxbow lake formed?a.An oxbow lake is formed when a lake shrinks due to erosion.b.An oxbow lake is formed when the wide bend of a river is cut off.c.An oxbow lake is formed when high concentrations of salt are present in lakes.d.An oxbow lake is formed when a dam or levee is built on a river.
How does the loss of vegetation on shore lines affect waterways?a.decreased sedimentationb.increased shorelinesc.increased erosion of water banksd.none of the above
Which of the following methods would help decrease marine pollution?a.government regulation of agricultureb.government regulation of industryc.reduction in chemical used.all of the above
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Which of the following practices could help reduce erosion of water banks?a.buffer stripsb.natural fertilizers and pesticidesc.decrease in fossil fuel emissionsd.all of the above
Increased awareness of water contamination can help reduce its effects.
How does flooding affect rivers?a.It causes river bends to be cut off.b.It picks up deposits from floodplains.c.It causes rivers to divert.d.It causes river channels to change shape.
Reducing access to waterways will lead to an increase in human impact on waterways.
Which of the following is an effect of fossil fuel emission on oceans?a.decreased pHb.decreased carbonate concentrationsc.increased CO2 absorptiond.all of the above
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