None of the above. An "Isthmus" (ISS-muss) is a strip of land separating two bodies of water.
A bridge is an example of how people might change a narrow piece of land that divides two bodies of land. By constructing a bridge, people can create a pathway for vehicles and pedestrians to cross over the narrow piece of land, connecting the two bodies of land.
A bridge is an example of how people might change a narrow piece of land that divides two bodies of water. It allows for easy passage over the land, connecting the two sides without disrupting the natural flow of the bodies of water or requiring excavation like a tunnel or canal.
a bridge because it can help you cross two bodies of water or more.
An example of a beam bridge is Chesapeake Bay bridge-tunnel Site: http://www.pbs.org/wgbh/buildingbig/bridge/index.html
A canal is an example of how people might change a narrow piece of land that divides two bodies of water. Canals are man-made waterways designed to connect two larger bodies of water, allowing for navigation and transportation. They often require significant excavation and engineering to create a route through the land. In contrast, bridges and tunnels typically span over or go under existing bodies of water rather than modifying the land between them.
beam and tunnel
Hampton Roads Bridge-Tunnel was created in 1957.
That would be the tunnel part of the Chesapeake Bay Bridge-Tunnel.See related link.That would be the tunnel part of the Chesapeake Bay Bridge-Tunnel.See related link.That would be the tunnel part of the Chesapeake Bay Bridge-Tunnel.See related link.That would be the tunnel part of the Chesapeake Bay Bridge-Tunnel.See related link.
Monitor-Merrimac Memorial Bridge-Tunnel was created in 1992.
Louis-Hippolyte Lafontaine Bridge-Tunnel was created in 1967.
Bridge and Tunnel Officers (TBTA Officers) are the Police force for the Triborough Bridge and Tunnel Authority. TBTA Officers have Peace Officer powers throughout NYS on duty and off duty.
Bridge + tunnel = brunnel