What are the main reasons some executive departments are independent

In general, independent agencies are tasked with administering laws and federal regulations that apply to specific areas such as the environment, social security, homeland security, education, and veteran affairs.

Explanation:

are these the benchmarks questions?

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south