Answer:
A key drawback with the use of tests to screen individuals for desirable characteristics is that It is a time-consuming procedure.
It is very important for the employees to know exactly what they must look into and assess the characteristics accurately. This process is very time consuming and takes up a lot of patience and resources to carry the tests.
A study that would need to occur quickly cannot indulge into this testing process because of it being very tedious and time consuming.
It also has to work with other systems in order to make laws
Make flash cards it helped me
B. Ethnic Cleansing
Both cases occurred because another race who had more power tried to eliminate the other race.
I'm thinking Lack of Motivation. I'm going to double check though for you.