Studies the population of the world, they look at birth, death and marriage rates and why people choose to live in certain areas.
the total number of people on Earth (spread unevenly across the Earth)
Define: Population distribution
Describes the way the population is spread out over the Earth.
Define: Population Density
Number of people who live in a square mile or kilometer
Explain why some countries are more populated and others are less densely populated
SOme areas like the plains and valleys are easy to settle because they can grow food and build easily. Other areas like flat coastal areas are early to trade by ship. Climate is also a factor - people like areas not too hot or too child and there is enough rainfall.
Name 3 continents the are the most populated
North America, Asia and Europe
Is population growing more quickly in recent years? Why
Yes, the birth rate increases and the death rate decreased. @ scientific developments made this possible; food supply has increased because farming methods have improved and advances in medicine. yes, because people are born faster than they die because of medicine and farming (more food)
Define: Birth rate
number of people born per 1000 people
Define: Death rate
number of people that die per year per 1000 people
What is Life Expectancy (which country has the highest/lowest levels)?
Qatar has the highest life expectancy and Antarctica has the lowest
Name the top 2 reasons for Population Growth (advancements in)?
Improvements in framing and medicine
List 10 reasons why demographers are concerned w/ the rapidly growing population.
1. affects the environment - forests disappear
2. cutting forests affects the supply of clean air.
3. with forests cut down the soil may wash away - erosion
4. many people cannot find jobs
5. not enough schools
6. shortage of fresh water
7. shortage of energy
8. food supplies cannot keep up with the growing population, not enough money to buy imported food
9. housing is scarce and expensive
10. public services like transportation and sanitation are inadequate
What is the Green Revolution?
New fertilizers, raising crops w/ less water and new varieties of important food crops and new ways to protect crops agains insects
People move from one place to another (on the same continent)
Define: Immigrants (give example)
people who leave one country to move to anther country
What are some challenges if too many people move to the urban areas (like Sao Paolo on p.?
cities can not keep up with housing, jobs, schools, hospitals and other services that people need. The shoe country suffers, there are fewer farms and less food.
Tell 5 reasons why people would migrate from one place to another
Looking for a better life for their families, looking for jobs, decent houses and good schools. More opportunity for their children.
What number has the world population reached as of last week?