Farmers used other forms of technology to their advantage, such as a. electricity c. cranes b. windmills d. none of the above

the name of the theory is landmass theory.

on november 6 and 7, 1917 (or october 24 and 25 on the julian calendar, which is why the event is often referred to as the october revolution), leftist revolutionaries led by bolshevik party leader vladimir lenin launched a nearly bloodless coup d'état against the duma's provisional government.