"Population and Race" Residents and Settlement PPT Courseware 2

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"Population and Race" Residents and Settlement PPT Courseware 2

1. Growth of world population

Before the 18th century, population growth was very slow;

After the 18th century, especially since the 20th century, the world's population growth rate has accelerated significantly.

The changing pattern of population growth:

The law of world population growth from 1830 to 1999: From 1830 to 1999, the time required for the world's population to grow by one billion has gradually become shorter, indicating that during this period, the world's population growth rate has gradually become faster.

Natural population growth rate = birth rate – death rate

The total population of a certain area in 2007 was 695,000, the number of babies born and surviving that year was 4,800, and the number of deaths was 3,000. So what was the region's birth rate in 2007? What is the mortality rate? What about natural growth rate?

Birth rate: (4800÷695000)×100%=0.69%

Mortality rate: (3000÷695000)×100%=0.43%

Natural growth rate: 0.69%-0.43%=0.26%

2. Calculate the birth rate, death rate and natural growth rate of the population in 1998 for the four countries in the table below.

(1) Rank these countries according to their natural population growth rates and see which country has the largest natural population growth rate?

(2) How is the natural population growth rate of Italy different from that of the other 3 countries, and what does this mean?

Areas with a population density of more than 200 people per square kilometer are the most densely populated areas in the world.

Areas with a population density of less than 1 person per square kilometer are the most sparsely populated areas in the world.

Why are these areas so densely populated?

From the perspective of natural conditions

These areas have suitable temperatures, moderate precipitation, and superior natural conditions.

The reason why the two places are densely populated is ( )

A. Agriculture developed earlier and has supported a large population in history.

B. Belongs to high latitude areas

C. Industry is developed here

D. It rains here all year round

What countermeasures should be taken?

Population problems

Overpopulation, growing too fast

birth control policy

The population is too small and there is negative growth

Encourage childbirth policy

in conclusion

1. Population development must be compatible with social and economic development and coordinated with the environment and resources.

2. Control the population size, improve the quality of the population, and follow the path of sustainable development

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For more information about the PPT courseware "Residents and Settlement Population and Race", please click the "Residents and Settlement ppt Population and Race ppt" tab.

"Population and Race" Residents and Settlement PPT Courseware 8:

"Population and Race" Residents and Settlement PPT Courseware 8 Teaching Objectives: 1. Understand the changing trends of world population, and master the problems and countermeasures caused by too fast or too slow population growth. 2. Learn to calculate the natural population growth rate and population density. 3. Master the world population distribution..

"Population and Race" Residents and Settlement PPT Courseware 7:

"Population and Race" Residents and Settlement PPT Courseware 7 Course Standards 1. Understand the characteristics of population growth and distribution. 2. Understand world population issues and their impact on society, the environment and the economy. 3. Understand the characteristics and distribution of the three major human races in the world. Knowledge and Abilities 1. Learn...

"Population and Race" Residents and Settlement PPT Courseware 6:

"Population and Race" Residents and Settlements PPT Courseware 6 1. Use maps and information to describe the characteristics of world population growth, and draw relevant columnar line charts based on relevant demographic data. 2. Use maps to describe the characteristics of world population distribution and analyze their impact on world population.

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Update Time: 2024-09-27

This template belongs to Geography courseware People's Education Edition Geography for Grade 7 Volume 1 industry PPT template

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