A simple geographical problem, a geographical problem

The so-called dividing line has no width, just like the line in a geometry problem, you will never consider its width. Without width, how can it be divided into two hemispheres?

So if there is a question like this, don't answer it. You can ask your geography teacher, he must be the same as me.

20 degrees west longitude and 160 degrees east longitude are just two geographical dividing lines, they are not real, so there is no question of who they belong to!

Also, between 20 degrees west longitude and 160 degrees east longitude is the Western Hemisphere, and the remaining half is the Eastern Hemisphere!

In fact, it is only a demarcation boundary, and points and lines do not occupy space geometrically, that is to say, 20 degrees of west longitude and 160 degrees east longitude are the longitudes used to demarcate the boundary, and the discussion of more than their own attribution is meaningless.

Hehe, the landlord is asking this question, which feels a bit like a chicken-and-egg question.

Longitude and latitude are just to better mark the earth, which is a conceptual statement, not a real one, so it doesn't matter which hemisphere it belongs to.

If you insist that the place at 20 degrees west longitude and 160 degrees east longitude belong to **, I think these two places belong to **, that is, they belong to the eastern hemisphere and the western hemisphere. It's as if 24 o'clock is 0 o'clock, which is the beginning of the day and the end of the day.

Nothing belongs ... Lines have no width.

This is actually a test of your knowledge of the world's famous international rivers, and there are four main famous international rivers mentioned in secondary school geography, namely the Mekong, the Nile, the Danube and the Rhine. The Rhine is the largest river in Western Europe and a well-known international river in Europe that empties into the North Sea near Rotterdam in the north of the Netherlands! The outline of the map is obviously not the Mekong, Nile and Danube, it can be speculated that it is the Rhine!

If you are familiar with the geographical contours of the world's major countries, you can also recognize the obvious grooved outline of IJsselmeer.

Or indirectly from the geographical outline of the world-famous country Germany, the northwestern neighbor is the Netherlands, and you can speculate like this!

As for the map of the Netherlands you are looking at is not quite similar to this, it is caused by the difference in scale, and you can still distinguish it if you look closely!

This problem can only be known by familiarity with the map, and there is no other way; Of course, the Netherlands has some geographical features that are easy to identify: it is located in the lower reaches of the Rhine (Germany is an important country in the middle and upper reaches of the Rhine), it faces the sea to the north and west (North Sea), its coastal contour (IJsselmeersee), its low terrain, the famous country of windmills, and its well-developed dairy industry.

**The upload speed is too slow to upload, just check the picture.

The outline of the map, as well as the direction of the national border, shows that this is the northern part of the Netherlands.

In March 2001, it occurred in Hiroshima, in the southern part of Japan's main island of Honshu**. In 2003, the Arizu volcano in southern Hokkaido, Japan, erupted.

- Explain that Japan is located in the Pacific Rim Zone, with many volcanoes.

Use lightweight building materials to reduce the number of people caused by disasters. ——For the first reason, use light-weight building materials to avoid alleviating the personnel caused by the disaster.

Disaster Prevention Day is celebrated nationwide on September 1 every year, and elementary school students are pictured performing an earthquake drill. ——High awareness of earthquake prevention, pay attention to safety education and life awareness.

Under such natural conditions, the people of Japan generally have a strong sense of distress and a spirit of teamwork, and at the same time, they are cautious and cautious, and their personalities are introverted and tenacious.

The United States is prominent in the use of resources and the impact on the earth's environment

a.It consumes a large amount of global resources and is the world's largest resource consumer.

b.A large amount of waste is discharged, which damages the earth's environment.

c.Huge exports of agricultural products.

d.Agriculture adopts a production method of specialization in regional production.

Reason: aThe United States is a superpower, and Americans consume one-quarter of the world's resources; Industry uses a lot of oil, coal, natural gas, etc.

b.Industry, agriculture, and life discharge a large amount of garbage and wastewater, and the United States, as a superpower, has developed industry and high living standards, which will inevitably damage the earth's environment.

c.As an industrial power, the United States has always relied on imported agricultural products to maintain its food balance. This option is incorrect.

d.U.S. agriculture is the world's largest, high-efficiency agriculture equipped with the latest modern science and technology, and it has achieved total mechanization and the highest labor productivity in the world. The structure of the agricultural sector in the United States is relatively comprehensive, and the cropping industry, which is the basic sector of agriculture, has been fully developed.

The U.S. has a distinct nine areas of agricultural specialization, which are all in these textbooks. But judging from the stem, this is incorrect.

a. The United States is a developed country and its industry is the first in the world, so although it is rich in resources, it also consumes a lot of money, and it is self-evident that it pollutes the environment and that Americans are also a group of people with high consumption and serious waste, but China is "in the making" of banning the United States and becoming a high-polluting country.

c. The United States has the largest agricultural output value in the world, and its export volume is also the largest, but it accounts for a small proportion of GDP.

d. The United States (except Alaska) has specialized production areas such as wheat, corn, animal husbandry, and cotton.

The question is "Outstanding performance in the use of resources and the impact on the global environment".

So choose AB

A From the point of view of the topic, it is required to choose the United States in two aspects: "resource utilization" and "impact on the earth's environment". The first half of option A states the "resource utilization" of the United States, and the second half of the sentence states that the United States "affects the global environment".

1,。The eight planets are: water, gold, earth, fire, wood, earth, king, and sea king, so they are all planets, referring to celestial bodies that do not emit light by themselves and orbit the stars. The eight planets all revolve around the sun and belong to the solar system.

2Jupiter and Saturn are giant planets, which are relatively large in volume and mass, and not very dense.

3。The closer you are to the Sun, the faster the rotation, the greater the gravitational pull you will experience as you get closer, and the greater the centrifugal force required to maintain equilibrium, so the faster the speed.

1) Celestial systems generally go from low to high: Earth-Moon system, solar system, Milky Way, extragalactic galaxy (called star systems other than the Milky Way), total galaxies. Earth and Mars are both planets and belong to the same solar system.

2) Martian mass: kg, Earth mass: kg Mars average density g cm3 Earth average density 5, kg m3

3) Earth's orbital speed: km s (107,218 km h) Mars orbital speed: km s

Agree with the upstairs, but the detailed explanation is a bit complicated, and if you don't have a foundation, you can't understand the explanation.

I can't explain it well, just take a look at the content in this**, maybe it will help you!

Are you taking a test or treating us? Your question is too simple, is it okay to be more difficult?

Planets of the solar system.

Small Big Earth Earth Earth Earth.

Is your answer correct?

Mars has only 28% of Earth's surface area!!

The point of direct sunlight is the angle of incidence of sunlight on the Earth's surface (ie.

Sun altitude. for a location of 90 degrees.

The solar altitude angle is referred to as the solar height for a certain place on the earth, the solar height refers to the angle between the direction of incidence of sunlight and the ground plane, and professionally speaking, the solar altitude angle refers to the angle between the sun's rays and the surface tangent perpendicular to the center of the earth.

The general law of the change in the height of the sun at noon:

The decrease from the latitude of the direct sun (in this case, 90°) to the north and south is equal to the difference between the local geographical latitude and the latitude of the direct point (the difference between the southern latitude and the northern latitude is the sum of their values).

a Canberra is the administrative center, Tokyo is the political and economic center, Brasilia is the political center, but Islamabad is not, it is religious, France should be Berlin, Paris is the economy, and London is the political economy.

Moscow, Russia: the largest city and political, economic, scientific, cultural and transportation center St. Petersburg: an important economic center and the second largest transportation hub.

Mormansk: the largest port city in the Arctic Circle and the only ice-free port in northern RussiaVladivostok: a hub for sea and land transportation in the Far East.

Tyumen: the largest oil production base.

Berlin, Germany: the largest city and political center.

Bonn: an important political and cultural center (formerly the capital of the Federal Republic of Germany) Hamburg: the largest port city.

Frankfurt: financial center and airport.

Munich: the political, economic, cultural and transportation center of southern GermanyCairo, Egypt: the largest city in Africa, and Alexandria, the political and economic center of Egypt, the second largest city and the largest commercial port.

Port Said: The second largest commercial port.

United States: Detroit: Automotive Center.

Pittsburgh: Steel Center.

Washington: The Political Center.

New York: The Economic Center.

Brazil: Brasilia: Political Center.

Rio de Janeiro: Economic center (largest city).

São Paulo: Economic Center (2nd).

India: New Delhi: Political Center.

Mumbai: Cotton Textile Centre.

Kolkata: Hemp Textile Center.

Bangalore: Software Center.

Australia: Canberra: Political Centre.

Sydney: The Economic Centre.

You know the Yellow River, the Congo River is in Africa, it's too hot, so the city will definitely be built along the river. Mississippy is a developed country in the United States, and there must be many cities.

The Amazon is still a pristine region, and the tropical rainforest climate is not very suitable for human habitation.

c Brasilia, Islamabad.

bAmazon River Basin.

The first question can't be explained, yes is yes.

Second, the Amazon basin is located in the tropics, which is not conducive to urban location.

a b This does not need to be explained, because it is memorized, and geography is to be memorized.

The second question is b, because the Amazon basin is a tropical rainforest.

The first question should be C, I'm not sure.

c Brasilia, Islamabad.

b Amazon Basin Tropical rainforests are widespread, and the climate is hot and rainy, so there are relatively few cities.