High school geography questions are related to birthdays

It must be the date line (the meridian at 0 o'clock in local time and the line of the international date) pulling.

It is divided into two situations.

1.If you are the 8th birthday and you are now east of the International Date Line and it is the 8th, then it is your birthday, and you cross the date line from east to west and you will be on the 7th day and you will have another birthday.

2.If you are on the 8th birthday and you are now west of the meridian at 0 o'clock and it is the 8th, then it is your birthday and you fly from west to east over the meridian at 0 o'clock then you are back on the 7th and you can have another birthday.

c, the prime meridian is the dividing line of the date, so crossing it on the same date can be crossed twice.

d And it should be crossed from west to east the date line of the International Date Line, because to the west of the International Date Line is the East 12 Zone, which is the earliest place on the earth, and to the east is the West 12 Zone, which is the latest time on the earth.

d The aircraft flew from west to east over the date line, minus one day from the date. So he had already had a birthday the day before, and after 0:00 it was supposed to be the next day, but at this time the plane flew over the date line, and the date was subtracted by one day, and it became his birthday again, so he had two birthdays.

d, of course, it's the date line, and the prime meridian is the 0° meridian, which is useless.

Date line. The date line has the problem of adding and subtracting days, which happens to be two birthdays.

(1) Figure B The birth rate is high close to 4%, and the death rate is also high, close to 4%, and the natural growth rate = birth rate - death rate, which is a typical primitive type.

Figure C The proportion of middle-aged people is small The proportion of children and the proportion of old age is small, and they are in a transitional type (some books are no longer excessive, and the lessons are classified into the traditional type).

2) A is the traditional type, and D is the modern type.

3) Characteristics: Figure B High birth rate, high mortality rate, natural growth rate, primitive type - underdeveloped country, parts of Africa.

Tudding Low birth rate, low mortality rate, low natural growth rate, modern type – Europe, North America, Oceania.

Causes: Primitive type: primitive society is limited by the natural environment, the natural growth rate is high in areas with superior natural environment, and the natural growth rate is low in areas with poor environment, the country is underdeveloped, and medical and health services are underdeveloped.

Modern: The level of productivity has been further improved, the development of social economy, culture and education, the development of medical and health undertakings, the improvement of social welfare benefits, the improvement of the social security system, the great change of the traditional concept of childbirth, the decline of the birth rate, and the slow growth of the population.

Analysis]: Population growth patterns are divided into three categories.

Primitive The birth rate is high, the death rate is high, and the natural growth rate is low.

Traditional High birth rate, low death rate, high natural growth rate – Extended.

Modernity has a low birth rate, a low death rate, and a low natural growth rate – static and contractive.

Interpretation of Figure A The proportion of children is large, and the proportion of the elderly is small, and the typical dilated type, that is, the traditional type.

Figure B The birth rate is high at nearly 4%, and the death rate is also high, close to 4%, which is typical of the primitive type.

Figure C The proportion of middle-aged people is small The proportion of children and the proportion of old age is small, and they are in a transitional type (some books are no longer excessive, and the lessons are classified into the traditional type).

Tudin has a low birth rate, close to 1%, a low mortality rate, slightly above 1%, and a low natural growth rate, which is negative. A shrinkage type in the modern type.

(1) B: High birth rate, high mortality rate, low natural growth rate.

C: Aged 0-14 accounts for about 22% of the total population, 15-64 years old accounts for about 74% of the total population, and over 65 years old accounts for about 4% of the total population. Therefore, the population growth rate of C is relatively high, and it belongs to the ranks of developing countries.

2) A: Traditional; Ding: Modern.

3) D: Modern, the population growth pattern is characterized by a low birth rate, low death rate, and low natural population growth rate. It is distributed in Europe and the United States. Reasons: The high level of economic development, the improvement of the social insurance and welfare system, and the change of people's concept of childbirth.

B: Primitive, the population growth pattern is characterized by a high birth rate, a high death rate, and a natural growth rate. It is found in parts of Africa. Causes: The environment is harsh, the productivity of the population is low, and the level of science and technology is low. Food shortages.

I forgot all about it, I used to be the little prince of geography.

1.If you cross the date line in the direction of rotation and subtract one day, then: "Sister's birthday" is 11:30 on December 31, 2003, and "Sister's" birthday is 11:50 on December 30, 2003.2

East and West Twelve Time Zones, the moment is the same, but. Crossing the date line in the direction of rotation minus one day East 12 time zone is one day ahead of West 12 time zone3Beijing is the East 8th District and the East 12th District is 4 hours apart (one time zone is one hour apart), and because of East + West-, it is right to subtract 4 hours from 4

The longitude range of December 31 is: 1 degree 15 minutes east longitude to 180 degrees east longitude The longitude range of 12:31 is from the 1st east zone to the 12th east time zone!!

1. The birthdays of the twin sisters are: "Sister's birthday" is 11:30 on December 31, 2003, and "Sister's" birthday is 11:50 on December 30, 2003.2. The reason why the age of the "sister" is greater than that of the "sister" is: the time is the same in the east and west 12 time zones, but the east 12 time zone is one day earlier than the west 12 time zone 3. The husband of the mother received the telegram at 7:55 local time on December 31, 2003, and Beijing is the difference between the east 8th zone and the east 12th time zone, And on the west side of the 12th East Time Zone, the time is relatively late.

4. The range of longitude that has entered December 31 at the time of the telegram is: from 1 degree east longitude to 180 degrees longitude; The longitude range of 12:31 is from the 1st East Zone to the 12th East Time Zone.

The first three questions about the geography homework sent for the first time during the holiday were... So that you don't do your homework ...

This has to do with the date line, and I recommend that I take a good look at that chapter and have a good time.

I have also been deceived by this kind of question, in fact, the answer is on the question stem, "unconventional" means that it is different from the general gas burial method, and the sentence "mainly deposited at the bottom of the shale" directly tells you the answer: to the bottom of the oblique bottom, so choose C

If you read the question again, you will understand that item C is more in line with the conditions for shale gas sedimentation, and it is more likely to be shale gas than D (it is different from conventional natural gas at the top of the anticline), and I hope to adopt it.

c is the accumulation of oil and gas in the inclined terrain and d is the oil and gas generated by the anticline, and the oil and gas will also flow away.

d's geological structure is not capable of storing shale gas.

c, the sharp decline in the number of people in the country A should be the beginning of the 20th century; b. The fastest growth of people in country B should be the end of the 21st century; The birth rate of country D is greater than the death rate, while the birth rate of country A is less than the death rate, indicating that country A has a high degree of aging and corresponds to c.

Correct Answer: Explanation of Answer: In the middle of the nineteenth century, after 1850, the state-mandated birth rate was higher than the death rate, and the population did not decrease significantly.

In countries B and B, the fastest population growth during this period should be the largest difference in the annual birth rate minus the death rate, which is probably 1975, as you can see from the figure.

c, since the beginning of the 19th century, the developed countries of Europe and the United States, due to the gradual start of the industrial revolution, the demand for labor has been growing, and has begun to show a positive growth trend, because in the second half of the 19th century, the population in the second half of the 19th century. Before the year 2000, the industrial revolution in most European countries had been completed and entered the ranks of developed countries, and the natural growth rate of population naturally declined, accompanied by reverse urbanization

d, b is the clear state of population growth in developing countries (the beginning of rapid population growth in World War II); The population of a country, developed countries. Under the conditions of the aging of the world's population, in developed countries than in developing countries, this ratio in the overall proportion of the aging population of the aging population in developing countries, now economic development, objectively need labor.

The answer is c, the birth rate is the proportion of the newly born population to the total population, the death rate is the proportion of the number of deaths to the total population, population growth and the birth rate are closely related to the mortality rate, if the birth rate is greater than the death rate, it means that the population growth is fast, if it is close, it means that the population growth is slow, if the birth rate is lower than the death rate, it means that the population is negative. First of all, in the middle of the 19th century, it was 1850, and the birth rate and death rate in country A were declining, but the birth rate was still higher than the death rate. It shows that the population is growing, not decreasing.

In addition, the birth rate and death rate of country B are very close in the year, indicating that the population growth rate is relatively slow. c. Population growth in developed European countries is slow, sometimes even negative. In 2000, the birth rate was lower than the death rate, and the population growth was negative, which was in line with the population trend of developed countries.

d Only a relatively fast population growth can solve the problem of aging, that is, the proportion of the elderly population to the total population is high, that is, only when the birth rate is much higher than the death rate, there will be no aging, and the aging of A is more serious, because the population has already experienced negative growth.

d, in the second half of the 20th century, the mortality rate of B is declining linearly, the mortality rate is decreasing due to the improvement of medical conditions, the population of family planning is decreasing, the current population is aging, and the birth rate of A mortality rate is not much different in modern times.