Answer:
In 1954, Brown vs Board of Education of Topeka made the historic judgment by declaring school segregation unconstitutional. The identity and categorization approach was taken to weaken the difference between different groups on the bases of color or race. This approach helps to dissolve differences between different groups based on social division.
The correct answer is d. hunting -gathering.
Hunting and gathering was already existing before this : in fact the neolithic revolution was going away from this lifestyle and starting farming and domestication of animals.
Climate should be a good factor
<span>Federal system of government is where the national government holds some powers and the state governments hold other powers. </span>
