A farmer with hilly land will most likely rely on what engineering solution?
terrace farming
strip cropping
cutting down more trees
machines to soak up water
What was a likely design constraint in the building of the Hoover Dam?
food for the construction workers
energy loss
materials for the dam
energy transfer
How would forest engineers prevent soil erosion?
They would stop logging companies from coming into the area.
They would set up blockades around certain trees.
They would plant an invasive species of trees to prevent erosion.
They would decide which trees could be sustainably cut down.
