Think about the problem with geographical thinking in the online exhibition hall

1) Iceland is located between the Eurasian plate and the American plate, which is a growth boundary, so it is volcanic.

2) It is mainly harmful to the environment, climate and life. The specific statement can be searched on the Internet by yourself, and there are many of them.

3) 1. Minerals. It can be used in construction.

2. Volcanic ash. Fertile soil can be used for agriculture.

3. Hot springs formed by volcanic activity. Needless to say.

4. Stable volcanic activity. Tourism or scientific research.

5. Geothermal energy. In many ways, such as power generation, hot springs are also a type of geothermal heat.

1.Iceland is on fire 2The consequences are serious 3Volcanic ash is an excellent fertilizer, of course, for farming.

1.Common terms: West-to-East Gas Transmission, West-to-East Power Transmission, South-to-North Water Diversion, Open Source and Reduced Consumption, Western Plan, Common Prosperity, Sound and Rapid Development.

2.Key points and ideas for answering: Why should we implement resource allocation, and explain it from two aspects: distribution area and consumption areaWays to address resource shortages;Line selection for cross-region provisioning;Consider the problems arising from resource security, line safety, line cost, line construction, etc.;Factors influencing cross-regional deployment projects.

1.Analysis of the causes of resource allocation: from two aspects: distribution area and consumption area.

2.The way to solve the shortage of resources: open source and reduce expenditure.

3.Route selection for cross-region resource allocation: resource assurance, line security, line cost, and line construction problems.

4.The impact of the cross-regional deployment project: the impact of the transfer area, the transfer in area, and the area through which the line passes.

b Because sulphur dioxide is oxidized by ozone (O3).

I don't think there's an answer...But SO2 is about the same as ozone.

It's fluoride AB that causes the hole in the ozone layer, right?

The Physical Geography section focuses on the understanding of concepts and the need to understand them thoroughly.

The location selection of some human geography is the focus, and it is recommended to analyze it in a clear manner.

The regional geography part simplifies the region, grasps the commonality between the regions, and at the same time pays attention to the dividing line of each region.

Select B for this question. First, according to the rate of latitude escalation, c and d are excluded. As for the North Pole, everywhere is south, so choose B.

b, this question needs to understand two knowledge points: 1 Walking in any direction from the North Pole is south - red arrow. To go south means to go south along the meridian.

2. Go further east, that is, along the parallel, the latitude and the meridian are perpendicular to each other - the blue arrow. 3. Go north again, that is, start to walk along a certain meridian line again - the yellow arrow. So it's back to square one.

North Pole Because the North Pole is the northernmost point of the earth, 200 kilometers to the south, and then 200 meters to the north will definitely return to the original point, no matter how much you go east to west, it will not affect the return to the original point, because the North Pole is like the center of the circle, it is due south in any direction, and it is due north from anywhere to the North Pole.

Choice B, what geography did you study, so poor,

The North Pole, you can see it by drawing a cross diagram

Mankind's understanding of the earth's land and sea has gone through a long process. The world as known by early humans was only a very small world within the footprints and vision of people on land. At that time, there was no interaction between the people living on both sides of the continent, and the sea was seen as the end of heaven and earth.

On the world map of Ancient Greece, Ancient Greece is the center of the world. And our ancestors called their own territory'China

In the 2nd century B.C., Zhang Sai, an envoy of the Han Dynasty of China, sent an envoy to the Western Regions and opened up the famous'The Silk Road

In the 13th century, the Italian merchant Marco. Polo's arrival in China has erected a signpost for Asia-Europe exchanges.

At the beginning of the 15th century, Zheng He, a navigator of the Ming Dynasty of China, made seven voyages to the West, covering as far as present-day Southeast Asia, South Asia, West Asia and the east coast of Africa, and left behind famous nautical charts.

At the end of the 15th century, the Italian explorer Christopher Columbus crossed the Atlantic Ocean to reach the American continent.

In the 16th century, a fleet led by the Portuguese Magellan completed the feat of circumnavigating the globe for the first time.

It was not until modern times that mankind had a world map that accurately reflected the appearance of the earth's sea routes.