Even thought scientists can predict when and where tornadoes may occur why do these storms still catch people by surprise?

What is the formal role of congress on amending the constitution

1.how is germany's economic system similar to that of the united kingdom a.both are free-market economic b.both are command economic c.both are mixed economic d.both are traditional economic

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.