"Population of the World" PPT courseware

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"Population of the World" PPT courseware

Part I: The rate of population growth

Natural growth rate = natural growth rate - population death rate

Differences in natural growth rates among countries around the world

1. Calculate the natural population growth rate of each country.

2. Talk about their differences.

What are the characteristics of Nigeria compared with the other two countries?

High birth rate, high death rate, high growth rate

What are the characteristics of Germany's natural growth rate?

World Population PPT, Part 2: Distribution of World Population

Analyze densely populated and sparsely populated areas of the world.

What are the main causes affecting the world's population distribution?

Population "explosion"

The term "population explosion" is used to describe rapid population growth only in recent decades. The reason why population growth will accelerate is because of the development of social productivity. Even the "population explosion" of that year was mainly the result of social and economic development and advancement in medical and health technology, which led to a greatly reduced mortality rate. The death rate was greatly reduced without a corresponding reduction in the birth rate. This transformation accelerated population growth and the total population continued to expand like a bomb exploding.

Problems caused by rapid population growth

What problems will arise from excessive population and excessive population growth?

Excessive population growth not only causes problems such as traffic congestion, poor living conditions, employment difficulties, hunger and poverty, but also causes increased environmental pollution, deterioration of the ecological environment, and various types of land resources such as forests, grasslands, and cultivated land, as well as water resources and wide production. A series of problems such as the decrease in the quantity of natural resources such as natural resources (especially the sharp decrease in per capita ownership).

World population PPT, part three: data analysis

Information one

The latest census figures released by the UK recently show that the UK’s population is aging at an accelerated pace. At present, the population of the UK over the age of 60 has exceeded the population under the age of 16 for the first time, and the number of people over the age of 85 has reached 1.1 million, which is five times that of 50 years ago. Census results show that the current total population of the UK is more than 58 million, and people over 60 years old account for 21% of the total population.

Information 2

The latest census figures released by Statistics Canada on March 12, 2002 show that Canada's population increased by only 4% in the last five years of the twentieth century, a record low in Canada's history. By 2001, Canada's population reached 30,007,094. Among the newly added 1.2 million people, the number of immigrants exceeds the number of natural births, which is the first time since World War II.

in conclusion:

Different countries formulate different population policies based on their own population characteristics, which is a prerequisite for national development.

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

Keywords: Business Planet edition seventh grade geography PPT courseware free download, world population PPT download, .PPT format;

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"World's Population" PPT download:

"World's Population" PPT Download Part One: Population Growth 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 greatly accelerated. The changing pattern of population growth: 1830..

"World's Population" PPT:

"World's Population" PPT Part One Content: Learning Objectives 1. Know the current total world population and the characteristics of world population growth. 2. Know the characteristics of world population distribution and briefly analyze the reasons for its formation. 3. Preliminarily understand the world population problem and understand overpopulation..

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Update Time: 2024-10-18

This template belongs to Geography courseware Business Planet Edition 7th Grade Geography Volume 1 industry PPT template

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