They made canals and roads for safer traveling
Answer:
C. a third variable, such as students' home environment, must have caused students to both drink more non-diet soda and engage in aggressive acts
Explanation:
From the question, we are informed about An observational study that was conducted in inner-city Boston approximately four years ago demonstrated that high-school students who consumed more than five cans of non-diet soda every week were between 9 and 15-percent likelier to engage in an aggressive act compared with counterparts who drank less non- diet soda. In this case, we can reliably conclude that a third variable, such as students' home environment, must have caused students to both drink more non-diet soda and engage in aggressive acts.
Observational studies can be regarded as studies whereby
researchers make observation about different effect of factors such as
risk factor, home, as well as environment and diagnostic test that affects the experiment. In observational studies Variables are very crucial, A variable can be anything that that is liable to change, it can change and it can be changed as well. They are factors which the observer can manipulate or control for when carrying out experiments.
Answer:
you have break outs and marches against the lgbtqia an then turn agaist them.
Explanation:
The answer is <u>"Western music".</u>
Western music efers to the music which is created in Europe and also those musics got from the European from antiquated occasions to the present day.
Western Music alludes to those societies whose music framework depends on the reasoning and investigation of Pythagoras and his school. The Ancient Greeks were the principal European culture to examine the study of acoustics utilizing science and basic logical lab instruments like the monochord.
