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  • they can be difficult to navigate and cross

  • they may keep people apart that would otherwise interact

  • they can prevent trade

  • they form natural barriers between landmasses

( its all of the above apex )

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Kai

Lvl 3
3y ago
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Wiki User

13y ago

The reason oceans and rivers are barriers are because they can prevent trade, they might form natural barriers between places, and they can be difficult to navigate across. The reasons they are roadways is because they can be used to get from one place to another very fast, can help with trading, and can get you someplace you might otherwise not have been able to reach.

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Anonymous

Lvl 1
4y ago
they also may keep people apart that would otherwise interact
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Anonymous

Lvl 1
4y ago
thanks

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AnswerBot

5mo ago

Rivers and oceans are considered barriers because they present physical obstacles that are difficult to navigate or cross. Rivers can be wide, fast-flowing, and deep, making them challenging to cross without bridges or boats. Oceans are vast bodies of water that require specialized equipment like boats or planes to traverse, making them natural barriers to movement and communication.

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Wiki User

13y ago

Rivers and oceans form barriers to land transportation that may limit trade unless or until reliable shipping is available. Once this occurs, they can become some of the most valuable means of trade. Originally, they restricted the interaction between peoples without the means to cross them.

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Wiki User

8y ago

Landforms such as mountain ranges or rivers clearly act as barriers. One example is the Rio Grand River that acts as the boundary between Mexico and the US. The mountains of Switzerland for example have historically made that nation difficult to make war against.

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Anthony Torres

Lvl 5
3y ago

All of the Above

They form natural barriers

They can prevent trade

They may keep people apart that would otherwise interact

They can be difficult to navigate and or cross

(APEX)

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Onie Koch

Lvl 1
3y ago
r u sure?

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Wiki User

10y ago

The national languages of Canada being English and French

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Leonel Dunham

Lvl 7
3y ago

all of above

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all of the above

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Q: Why are rivers and oceans considered barriers?
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