What does the supreme court rule in plessy v. feeguson about state legislature passing laws segregating the races?

What is walt whitman's poem "when i heard the learn'd astronomer about?

Numbing feelings with addictive substances becomes a vicious cycle as the addiction itself often manifests further negative emotions

Which sentence best explains how steam power changed agriculture in england between 1810 and 1850? a. farmers started using steam-powered machines to spray chemical fertilizers and pesticides. b. livestock farmers began using steam-powered machines to milk cattle and shear sheep. c. steam-powered railways transport and sell agricultural produce far from where it was grown. d. steamships to transport large numbers of people from the united states to english farms.