AP world history U3: what land based empire do you think was the most significant and why

Which amusement park ride utilizes periodic motion a. slide b. bumper cars c. giant swing d. roller coaster

What information does a survey provide? a. an accurate description of the population surveyed b. whether there is a predictive relationship between two variables? c. whether there is a cause-and-effect relationship between two variables d. none

Which control would most likely achieve the greatest reduction of noise pollution? limiting airplane traffic insulating buildings and homes reducing road and highway traffic using headphones to listen to music building noise barriers beside highways