_____ LAKES HAVE LOW NUTRIENT CONCENTRATIONS.Question 3Answera.Oligotrophicb.Endemicc.Eutrophicd.Dystrophic

Select all of the following that describe lakes and ponds.Multiple select question.Light penetrates lake and pond regions to differing degrees.Decomposers inhabit only the shallow, nutrient-rich water near the shore.Phytoplankton are dominant producers in the photic zone.Rooted plants thrive below the photic zone.

AIR POLLUTANTS MIXING UP WITH RAIN CAN CAUSE ______ IN FRESHWATER LAKES.Question 13Answera.weak alkalib.low pHc.strong alkalid.high pH

Select organisms that are common in lakes and ponds.Multiple select question.CoralsSea urchinsInvertebratesPhytoplanktonZooplankton

Multiple Choice QuestionWhich of the following correctly describes the role of lakes in the hydrologic cycle?Multiple choice question.They are permanent features through geologic time.They hold more water than all other freshwater sources.They hold a minor amount of earth's water.

Which of the following is eutrophication?a.Hydrocarbon runoff from a refineryb.Natural nutrient enhancement of a shallow lake or estuaryc.Phosphate enrichment by fertilizersd.Sulfur discharge from an industry