Why are polders important to the netherlands? a.) they hold back the north sea to prevent it from flooding the country b.) they have increased the land area of the country c.) they keep most of the country’s waterways closed off to prevent flooding d.) they are used to return some of the farms to wetlands e.) they drain seawater and divert into canals

A polder is a large tract of low-lying wetland or former sea floor partially. Also it is drained mostly with pumps. Poldering is so Important  the Netherlands  would barely exist without it. The canals collect the water, which then flows or is pumped away to the sea. (E)

Polders are important for the Netherlands because they hold back the North Sea to prevent it from flooding the country.

Explanation:

A polder is a huge patch of low-lying wetland or a piece of land previously acquired by the sea. The polders exist in a huge number in the entire Netherlands. Because the polders lie below the mean sea level, water from the sea seeps into these polders and prevents it from flooding the country otherwise. The polders are continuously drained out back again into the sea with the help of pumps.

The answer i think is d