Answer:
A control should have been included in the investigation
Explanation:
It is impossible for the student to interpret a correct conclusion about his experiment, without adding a control treatment where he can really compare the differences between the variables.
Control treatment is an element of research that receives all factors, except the variable being tested. The control serves to make comparisons with the other treatments, allowing to observe the exact difference between a system where the variable was tested and the system where it was not.
In the case of the question above, it would have been necessary for the student to have placed a cart on a ramp of normal height and without sandpaper. That way he could compare the speed between this cart and the carts on the other ramps, thus having a correct result.
Marbury v. Madison strengthened the federal judiciary by establishing for it the power of judicial review, by which the federal courts could declare legislation, as well as executive and administrative actions, inconsistent with the U.S. Constitution (“unconstitutional”) and therefore null and void.
<span>Militarism is the certainty or the wish of a government or individuals that a state should uphold a solid military competence to use it violently to enlarge or endorse national welfares; samples of militarist states include the US, Russia and France. Also, this means that in war, there is a buildup of armaments for preparation.</span>
Many reason. Marauders. Bandits. The previous route took forever and was REALLY LONG.
