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Land reclaimed from where water once was. Very fertile.


Barriers holding back water from places that are under sea level


The first dikes built in the Netherlands over 2000 years ago.

land reclamation

The process in which people built dikes to close in a section of water, then drain the water, creating more land.


What people do on the polders, causing it to sink a lot of times.


Largest port in the world


The Netherlands' capital

North Sea

Netherlands' main flood fears come from this sea.

Delta Plan

A network of dams that took 30 years in all to build.

Population Increase

The reason for making polders in he first place.


Export reason for the Netherlands to continue to protect their polders from the North Sea.

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