Consider the effects that the panama canal has had on the world during the past century. what other transportation innovations in the last century have had a similar effect?

Panama canal connects the route between the Atlantic and Pacific ocean

Aviation and Channel tunnel are major innovation in the last century for transportation.

Explanation:

Panama canal is reopened after 100 years, its length is 80 km and it makes the transportation of freight much easier and faster between the Atlantic and Pacific ocean. Aviation invention makes the passenger and freight transport much faster from one end to another end of the world easily. Channel tunnel is the rail line which connects the Britain to the European mainland in France. This tunnel transports the goods and passengers and it makes the European Nation as stronger than earlier.

tunami b/c it is near water

20: 5

explanation:

about 20% of the world's population lives in   southwest asia, but on less than 5% of the world's   land area.