The common climatic characteristics of the densely populated regions of the world are:

The common characteristics are: flat terrain, fertile soil, and abundant water (there are rivers). The climate is warm and humid.

Basically, they are distributed in temperate coastal areas, and the temperature and precipitation are moderate.

The terrain is flat, the water source is abundant, the precipitation is moderate, and the temperature difference is small, and most of them are located in the middle latitudes.

More than two quarters of the world's population lives in coastal areas.

The world's most populated areas are mainly located in the eastern and southern parts of Asia, the western part of Europe, and the eastern part of North and South America.

East Asia, the most densely populated region in the world, includes China, North Korea, South Korea, Japan and other countries, with a population of more than 1.6 billion, accounting for 25% of the world's total population. The average is about 135 people per square kilometer, which is three times the average population density in the world.

In South Asia, there are 7 countries, including India, Pakistan, Bangladesh, Nepal, Bhutan and other countries, with a total area of 4.3 million square kilometers and a population of about 100 million, with a very large population density, with an average of 182 people per square kilometer.

Western Europe is predominantly Caucasian and densely populated, with a population of more than 500 million. At present, the natural growth rate of the world's population is very low, and some countries are experiencing negative growth.

North America, the most economically developed region in the world, has a total population of 100 million, accounting for about 5% of the world's total population. The population of North America is very uneven, with the vast majority of the population distributed in the southeast, with more than 200 people per square kilometer.

The uneven distribution of the world's population is manifested in:

1. The population is concentrated in areas with superior natural environmental conditions.

2. The population is concentrated in urban areas. After the Industrial Revolution, urbanization in various countries around the world has increased, and the proportion of urban population has increased, and the development has been even faster in the 50s.

3. There is an obvious trend of concentration in the coastal areas. The populations of all continents of the world tend to be significantly concentrated on the coast.

4. The population distribution of low-lying and flat places is concentrated. At present, a large number of people in the world are mainly concentrated in places below 200 meters above sea level, mostly plains and hills, with low and flat terrain, high land utilization rate, large load, and the population is often concentrated.

Dense area: plain-dominated area, coastal area, suitable latitude, generally in the middle and low latitudes, suitable climate, fertile soil, sufficient water sources. There are also areas with convenient transportation and developed industry and agriculture.

Scarcity: Places with extreme climates that are not suitable for human habitation, such as high altitudes, lack of fresh water, etc.

Uh, high school geography, right?

Distribution characteristics: the middle and low latitude coastal plains are the most concentrated, and the plains and mountainous areas, coastal and inland areas, low latitudes and high latitudes can be compared and analyzed.

Reasons for the sparse population of the world's population areas: unfit for human habitation It needs to be analysed in the context of the natural and human elements of specific regions.

Population densification is due to historical reasons, and historically, depending on the main problem of water sources that determine population density, the most densely populated areas are on the banks of large rivers. Or something delta.

Crowded: Pleasant climate and convenient transportation.

Sparsely populated: the environment is harsh and transportation is difficult.

……ok？

There is an abundant supply of water along the coast and along the river.

the world's four most densely populated regions, East Asia; Southern Asia; most of Europe; Eastern North America.

the four most sparsely populated regions of the world, the cold tundra belt and ice field belt; subarctic coniferous forest belt; undeveloped tropical rainforest belts; Arid desert area.

Reason: There are both natural and human factors: but natural factors are the main ones.

First, due to the altitude, it is too high and the living environment is harsh, which is not suitable for human survival. Man cannot survive in water except with the help of oxygen cylinders.

In the same way, people cannot leave the water, and desert areas are less populated.

In addition, there is too much water in the rainforest area, which is not suitable for humans.

3. Temperature. Too low, too high.

Four deadly creatures; Such as tigers, poisonous snakes, parasitic flies, man-eating mosquitoes.

Five people. There are two scenarios. First, the human factor has caused the environment in the area to be unsuitable for human survival; The second is a protected area established for conservation purposes.

6. Natural disaster-prone areas.

The four most densely populated zones in the world are: the eastern and southern parts of Asia; the western part of Europe; North America and the eastern part of South America, because these regions have superior natural conditions, warm and humid climate, developed economy, and convenient transportation

So the answer is: the four most densely populated zones in the world are: the east and south of Asia; the western part of Europe; North America and the eastern part of South America, because these regions have superior natural conditions, warm and humid climate, developed economy, and convenient transportation

Natural conditions.

In terms of latitudinal location: located in high and low latitude areas

Land and sea location: It is located in the inland area

Topographical: mainly plateaus and mountains, high altitude or rugged terrain Climate: hot and rainy, too humid and hot; Less precipitation and an arid climate; The climate is cold.

1. The most densely populated regions in Asia are East Asia, South Asia, and Southeast Asia.

2. Reasons for density:

1) Climate: The climate of these three regions is more suitable for human settlements and crop growth - they are all monsoon climate zones, with abundant precipitation and temperature, and more hot precipitation in summer, which is conducive to crop growth. (This is the main reason for the dense population of the three places, and the climatic advantages of the three places are obvious compared to the rest of Asia).

2) Topography: These three places are mostly plain and hilly, which is suitable for the development of agriculture.

The most densely populated regions in Asia are East Asia, Southeast Asia, and South Asia. The reason for the density is that it is the ancient cultural center of the world, the human settlement here has a long history, and the natural conditions for the development of agriculture are superior.

East Asia, South Asia, Southeast Asia.

The reasons du are:1 Climate:

The climate of these three regions is more suitable for human settlements and crop growth: they are all monsoon climate tolerance areas, with abundant precipitation and temperature, and there is more hot precipitation in summer, which is conducive to crop growth. (This is the main reason for the dense population of the three places, and if you compare the rest of Asia, you will find that the climatic advantages of these three places are obvious) 2 Topography:

Mom and Dad's topic, you can take the charcoal and sulfur powder in the Weibo Talent Hall of Weibo.

The world's most populated areas are mainly distributed in the southern and eastern parts of Asia, Europe, and the eastern part of North America

So the answer is: south, east

The four most densely populated zones in the world: the eastern and southern parts of Asia; the western part of Europe; The eastern part of North and South America

So the answer is: south; East

First of all, we can rule out the answer of 3, because the Yellow River and the Yangtze River basin are the places with the highest concentration of Chinese population.

1 Amazon River Basin The middle and upper reaches of the Amazon River flow through tropical rainforests, and the climate is harsh and uninhabitable.

2 The Nile Basin is divided into seven regions: the East African Lakes Plateau, the Mountain Rivers Region, the White Nile Region, the Blue Nile Region, the Atbara River Region, the Nile Region north of Khartoum, and the Nile Delta. Most of the places where it flows through are places with harsh natural environments.

4The Ganges River, located in northern India, is a major river in South Asia. The Ganges Delta supports more than 300 million people, and about 400 million people live in the Ganges Basin, making it the most densely populated river basin in the world.

So choose B

The answer is C Analysis: The Amazon River basin in Brazil is dense and sparsely populated, as long as the highlands are densely populated.

Most of the Nile is the Sahara Desert (except in the south), and the desert is sparsely populated.

Although the Ganges basin is highly populated, it is small and only the densest in South Asia.

The answer is b. The most densely populated region in the world is Asia. The most densely populated provinces in China, such as Jiangsu, Zhejiang, Henan, Hebei, Shandong, Hunan, Hubei, etc., are mostly located in the Yellow River and Yangtze River basins.

Bangladesh, India and other countries covered by the Ganges River basin are all highly populated countries.

The reason is very simple, China and India are both well-known populous countries in the world, and the estuaries of the Yellow River and Yangtze River basins, namely the Yellow River Delta and the Yangtze River Delta, have many cities and dense populations, and the estuaries of the Ganges River are the same!! The Amazon basin is sparsely populated and uninhabitable, and the Nile estuary is desert with few oases!! Complete.

Obviously b, the two basins correspond to China and India, two countries with more than one billion people, and it is estimated that at least 2 billion people live in these two basins.

b The two basins are located in densely populated areas and in countries with the largest populations in the world.

One, number two.

b China and India are both densely populated countries.