List the colors of the spectrum in order of increasing wavelength

Which of these describes a social effect of the civil war? a) fields were left unplanted because the slaves had been freed and much of the male population was unavailable to plant or harvest crops. b) over 600,000 men died, mostly because of the lack of food, clean water, and hygienic medical practices. c) after the emancipation proclamation was issued, african americans were allowed to join the union army. d) lincoln’s assassination after the surrender caused a disruption in the rebuilding of the nation.

Which of these coordinates is closest to mt. kilimanjaro? 2° s latitude; 30° e longitude 4° s latitude; 20° e longitude 34° s latitude; 20° e longitude 12° n latitude; 2° w longitude

Which was a problem for american industry in the late 1700s to early 1800s? a. national trade unions b. a shortage of laborers c. child laborers