Answer:
The control group
Explanation:
This group is known as the control group. It is used as the bench mark in an experiment to compare or measure results bin other groups. It is used in an experiment as a way of checking if the experiment would actually work. That is it ensures that the treatment that is being given is still within the experiment and not as a result of an outside influence that has nothing with the experiment.
It made it harder for the countries to achieve unity.
One example for this is the separate existence of Chile and Argentina - they are separate counties, because they are separated by the Andes.
Generally, natural borders, such as rivers and jungles made the political unity harder.
the source of sediment for the morrison formation is true
Answer:
the automobile industry
Explanation:
I had done it on usatest prep
Answer:
the location of the end of the Civil War.
Explanation:
Because that's where the civil war was.
