How did jamestown's survival lead to more English colonies?

How did disease impact the human death toll during this time period? disease killed more people than combat during this time. disease steadily increased as the war hospitals were attacked. improvements in medical technology decreased illness overall. disease was a small but significant contributor to deaths at this time.

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.

Concerns about the environment prompt congress to pass a $1 surcharge tax on each gallon of gasoline. which statement best describes the impact of such a tax