Answer:
Anser 29:Population density refers to the number of people who live in a defined land area (usually square miles or square kilometers). So, if two million people live in ten square miles, the population density is two hundred thousand people per square mile
Answer 29: 100,000 times per day, and about 35 million times in a year.And 60 to 100 times in a minute
Step-by-step explanation:
