Take a closer look at the section called ""Living and Working in the Snow."" How did the workers live and work through the winter while building the Summit Tunnel? Check all of the boxes that apply. By digging snow tunnels from their shelters to the tunnel By taking frequent trips into nearby towns By building sturdy cabins By relying on lamps to light the tunnels where they lived and worked

The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.