One of the main reasons that jamestown settlers struggled to survive was that they

Jamestown settlers struggled to survive because they did not have enough food. They hit another low when the winter of 1609-1610 came, a period that became known as the "starving time".

Jamestown settlers struggled to survive because they did not have enough food.

Explanation:

the number of calories in each pack of cookies has a greater variation than the number of calories in each pack of crackers.

a countries leader should be motivated by the common good of the country.