Human Population Quiz

Population Quiz

1. What is the current world population?

2. What is the current U.S. population?

3. What is the average number of children per family in the U.S.? In Germany? In Uganda?

4. What are the 5 most populated cities in the world?

5. How has the world population changed in the past 200 years? Why did this happen?

6. If you were to squish together every person on Earth, how big of an area would that take up?

Population Size

Now: In US?

313,107,572 In world?

6,997,707,065

In 2050: In US?

392 million In world?

About 9.3 billion

Children per Family

In US? 2.0

In Germany? 1.3

In Uganda? 7.1

What are the 5 largest cities in the world?

1. Shanghai, China (18 million)

2. Karachi, Pakistan (13 million)

3. Mumbai, India (12 million)

4. Beijing, China (12 million)

5. Moscow, Russia (11 million)

Four Largest Cities in the U.S.

1. NYC – 8.4 million

2. LA – 3.8 million

3. Chicago – 2.9 million

4. Houston – 2.3 million

Human Population Growth

Human Population Growth

Population Year Reached Years to Reach

1 billion 1850 Tens of thousands

2 billion 1930 80

3 billion 1960 30

4 billion 1974 14

5 billion 1987 13

6 billion 1999 12

http://www.youtube.com/watch?v=sc4HxPxNrZ0&feature=topvideos_education

Factors Affecting Human Factors Affecting Human Population SizePopulation Size

© Brooks/Cole Publishing Company / ITP

Human population is currently growing exponentially:

• What will be the ultimate size of the human population?

• What is Earth's carrying capacity? (How many humans can Earth support?)

What do you think?

If we cannot provide the basic necessities for 1 billion people today, how will we provide these necessities to an additional 3 billion people in 2050?