How did advances in military technology contribute to the stalemate that developed in europe during world war i?
a. countries rarely attacked one another's land, as most fighting took place on advanced naval vessels.
b. few leaders risked large-scaled attacks, as tanks and aircraft were too valuable to risk in battle.
c. armies were unable to capture much territory, as it was defended by troops with machine guns.
d. soldiers remained healthy in trenches, as cars and trains rapidly supplied them with food and medicine.

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.

Which of the following inventions most directly allowed ancient farmers to produce a surplus ?

Which two events demonstrated north carolina’s revolutionary war (1773) leadership by demonstrating commitment and dedication to the cause of america’s future freedom?