Changing Waterways Answers

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.

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

Over time, most lakes grow larger due to erosion.

Increased awareness of water contamination can help reduce its effects.

The majority of the debris found in the garbage patch is _______.a.large plastic bottlesb.sewagec.trash from landfillsd.small pieces of plastic

Which of the following is a source of water pollution?a.sewageb.oil spillsc.fertilizersd.all of the above

Flooding on rivers is caused by human activity rather than natural events.

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