The opposite of dense could be thin, sparse, uncompressed, lightweight, or rarified (in the case of gasses).For populations, the opposite could be scattered or meager.
A dense population pattern occurs in the eastern coast of Australia
When a population is large and dense
dense
Yes
Yes, it is very dense.
48,998,932
Alaska.
dense
* thick * wide * dense * broad
Population
Both have very dense populations BOI!! ~Xrod~