Too many people!
It's super crowded!
Density is growing faster every year.A dense area is very crowded.
Why are some places more crowded than others?
Because some places are more popular when people here about it.
Some places have oceans nearby.
Some places have tornadoes.
Overcrowding can lead to starvation.
Traffic causes more accidents.
More people=More jobs
There are more people to keep you company.