Answer:
Europeans introduced new diseases, killing indigenous natives.
Explanation:
On arriving this places, the Europeans brought with them diseases that were originally not known to these indigenous people. The indigenous people had a large mortality rate due to these diseases because their immune systems were unfamiliar with these diseases.
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.
Answer:
There were many new opportunities in western united states in the 1800s. There was a gold rush in California and many traveled there seeking profit from selling gold. There was also a lot of unclaimed land that farmers wanted to claim. New territories needed new governments as more people were moving west. Many also moved to the west for railroad work. This is why many people moved to the American west.
Answer:there is only a responsible person of this Nd those are our political leaders
Explanation: i hope this help
