Answer:
The wheeled cart allowed for faster transport of goods and services. This allowed trade between distant cities and towns to become easier to accomplish. Trade became more popular due to this fact.
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Answer:
Pilot study
Explanation:
A pilot study is a preliminary study (prior to the actual study) done in a smaller scale to determine if the main components of the actual study (duration, cost, adverse events) will be feasible.
A pilot study is crucial to determine whether the study is doable and the areas that can be improved before the actual full-scale study takes place.
In this example, Clara conducted a trial run with a <u>small number of participants</u> to see if the instructions are clear and the experimental setting is plausible. Clara did this <u>before the actual study</u> and she did this trial run in a smaller scale, <u>her goal was to determine if the experimental setting was plausible and areas of improvement</u> (like the instructions), thus, this meets the requirements of a pilot study.
.......................Galileo.........................<span />
