What best characterizes the trenches dug by the Allies and by Germany? They provided excellent protection from enemy fire. They were extensive and heavily fortified. They allowed the troops to move forward quickly. They were more of an asset to the Germans than to the Allies.

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.