Poor Health
Many colonists died from disease
Poor Health
Poor health
Poor health.
You basically said it in your question. The ground was swampy so the water was bad, there were mosquitoes, and disease.
they ran out of food
Poor Health
Lack of food was the most pressing problem.
they ran out of food
colonists refusing orders from the investors
Occasional war with nearby competing French colonists There was constant fighting with dutch colonist.
the environment because they had bad water, they were in a drought, and they couldn't grow any good food and they got salt water poisoning another problem they faced was that the people brought over didn't have the required skill sets to survive the harsh conditions and the last bad reason why so many died was because of the unfriendly native Americans, yes they did help but some colonists went and did something to the NA and hats why they attacked Jamestown