Why are polders important to the Netherlands? They hold back the North Sea to prevent it from flooding the country.
They have increased the land area of the country.
They keep most of the country’s waterways closed off to prevent flooding.
They are used to return some of the farms to wetlands.
They drain seawater and divert it into canals.

Read the following quote from the nature conservancy, “the 3 billion people who live in poverty around the world will be hardest hit by climate change. the poor are more dependent on natural resources and have less of an ability to adapt to a changing climate. diseases, declining crop yields, and natural disasters are just a few of the impacts of climate change that could devastate the world’s most vulnerable communities.” from this quote, what group of people is most vulnerable to climate change? those who depend on industrialized nations people who are able to adapt to changing conditions people living in central america people who are living in poverty

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

What would have happened to portugal’s trade if they had not found a way to sail around the tip of africa