Which part of the federal government is not mentioned in the constitution but, by custom, has affected the impact of the constitution?

Which statement best summarizes the process of the abolition of slavery in the united states? o a slave owners agreed to limit and ultimately abolish slavery to prevent a slave rebellion similar to the haitian revolution o b. the united states did not abolish slavery until after many latin american countries did because it faced opposition from powerful slaveholders o c. the abolition movement in the united states used a series of legal challenges to successfully outlaw slavery. d. the abolition movement used nonviolent tactics to eventually convince the u. s. government to abolish slavery.

What was charles townshends development of a crop rotation system important to the industrial revelotion

Plz the 10 places that charles darwin stopped at to report his findings, and include dates?