4th Grade Chapter 5

Smoke from cars, factories, and homes can create air _______________.

• megalopolis
• pollution
• population density

A "great city" consisting of a string of towns and cities where people live is called a ______________________.

• megalopolis
• pollution
• population density

The measure of the average number of people living in one area is called __________________.

• megalopolis
• pollution
• population density

The megalopolis called "Boswash" is

• a single large city.
• a few small towns.
• a densely populated area.
• an area with few people.

What area would have a high population density?

• A rural community
• a small town
• a farming town
• a large city

Population density affects

• where people live.
• what people do for fun.
• how people get around.
• all of the above

Where are you most likely to find large apartment buildings?

• rural areas
• big cities
• small towns
• suburbs

Which of the following would you be most likely to find in rural areas?

• the arts
• skyscrapers
• tourism
• farming

Which of the following would cause land pollution?

• driving a car
• throwing away trash
• spilling oil in water
• riding a bike to school

Air and water pollution are caused by

• things people do.
• low population density.
• apartment living.
• pests carrying diseases.