Documents What do the following have in common?

What do the following have in common? Airplanes, bridges, cars, dams, electricity, skyscrapers, landfills, helicopters, offices, pumps, restrooms, spaceships, lakes Can you…

Documents What do the following have in common? Airplanes, bridges, cars, dams, electricity, skyscrapers,...

What do the following have in common? Airplanes, bridges, cars, dams, electricity, skyscrapers, landfills, helicopters, offices, pumps, restrooms, spaceships, lakes Can you…