Fill in the blanks

Let's fill the appropriate pair of words in to the sentence.

Demographers and anthropologists have corrected the notion that European explorers in North America entered a --------- territory by showing that the land in some areas was already as densely ---------- as parts of Europe.

a) fertile . . settled

b) colossal . . wooded

c) desolate . . populated

d) valuable . . exploited

e) hostile . . concentrated