The best title for the list below would be? Building dams

Building Canals

Building Tunnels

Building Roads

Group of answer choices

How people modify the environment

Ways to control flooding

How transportation has changed over time

Ways for government to make money

Using mr smith and his id, identify two potential internal validity threats that might affect the a—b design. tell me how that threat might impact conclusions in the a—b design. note #1: you cannot use maturation (since i already did that one for note #2: there are some mr smith id threats that won’t have much impact in a single case design.