• Name:                                                                            Dateof Test:                 

     

    Chapter 3 Test Study Guide

     

    Section 3.1

     

    ·       In 2000 theEarth’s population reached                                  people.

    ·       By 2050, theEarth’s population is expected to reach                      people.

    ·       Reasons whypopulation is growing so rapidly.

    o  Better                                      and                                          .

     

    ·       Effects ofincreases in human population:

    o  Pressures on                                                                 

    § Most waste endsup in                                        

    § Land fills canrelease harmful                                in the air and harmful                                 into the ground.

     

    o  Pressures on                                                                 

    § Natural Resourcesinclude:                                                     

    §               % of Earth’s water is freshwater.

     

     

     

    o  Pressures of                                                                            

    § PopulationDensity:

     

     

    o  Pressures of                                                                            

    § Loss of                                    and                                         

     

     

    Section 3.2

    ·       RenewableResources can be replaced.

    o  Examples:                                                                                        

     

    ·       NonrenewableResources can not be reused.

    Coal,oil, and natural gas are commonly called                        fuels.

              These resources are commonly burnedfor:

                                 a.                                            

                                 b.                                            

                                 c.                                            

     

     

    ·       3 main types ofpollution:                          ,                            ,                 

    ·       Sources of airpollution:

    o                                                                                                           

    o                                                                                                           

     

    ·       Sources of waterpollution:

    o                                                                                                           

    o                                                                                                           

    o                                                                                                          

     

    ·       An increase inpollution in an ecosystem will result in a                                      inbiodiversity.

     

    Section 3.3

    ·                                              is the processof saving or protecting a natural resource.

    ·       The                                                    wasformed to enforce federal environmental laws in the United States.

    ·       Two examples ofsustainable practices:

    o                                                                                                 

    o                                                                                                 

     

    ·       Three examples ofalternative energy sources:

    o                                                                     

    o                                                           

    o                                                           

     

    ·       Three benefitsfor using mass transit:

    o                                                           

    o                                                           

    o                                                           

     

    Also:

    What are some ways in whichyou can reduce the amount of resources you use?

     

    What types of trash do wethrow away in the United States?

     

    What are the three R’s ofconserving resources: R                                    

                                                                            R                              

                                                                            R                               !