What problems did the Cascades cause in the railroad's first three years? Check all that apply. O Rockslides often delayed trips through the mountains. It was difficult to build a pass through the rugged slopes. Hot temperatures in the summer warped the train tracks. O Avalanches in the winter could trap a train for days at a time. Tornadoes sometimes ripped up tracks and derailed the trains, ILL GIVE BRAINLIEST IF RIGHT HURRYYY