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1, flowing from east to west, 100 relative height 200
2. The contour lines of place C and C intersect and are steep cliffs, which are suitable for rock climbing. The rest of the place is too steep.
3. The line is good, the line leads water from high to low, and the water can be kept to save energy. And the line is also relatively close, saving capital and conducive to construction.
4. The highway is roughly parallel to the contour line, and the slope is gentle; It connects the settlements in the map, which is conducive to people's outing and economic development; The saddle part of the north passes through, and the amount of work is small, which is convenient for construction.
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1) From west to east, greater than or equal to 100, less than or equal to 2002) C, the terrain is suitable for rock climbing, and the terrain on the west side of the cliff is flat, which is suitable for the development of rock climbing-related economic undertakings, and the traffic is more convenient.
3) 1 reasonable. By taking advantage of the altitude difference to make the water flow artesian, the power energy resources are saved.
4) the highway in the figure is distributed along the contour line, crosses the saddle, the height difference is small, the length is short, and the safety factor is high, which is convenient for vehicles to climb; Crossing the two rivers makes it more convenient to interweave water and land transportation lines.
In fact, Tutu is too small to see clearly, please forgive me if there are mistakes
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The direction of the water flow is from east to west, and the relative height range of the cliff is (100, 200).
1. The water diversion of the line is more reasonable. On the one hand, this line is located on higher ground, which can self-flow water diversion and save costs; On the other hand, the water source is located upstream of the settlement, which is not polluted and the water quality of the water source is good.
The highway is paved along the contour line to save construction costs; Settlements pass along the line, which is convenient for residents to live and produce; Routing along the valley, the geological foundation is relatively good.
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From west to east 50 meters Jiadi Because the contour line is dense and the surrounding environment is safe and flat, it is more reasonable than other places 2 The diversion line is reasonable Because according to the flow direction of the water, Line 2 is more reasonable Choose to build in the valley, and in the location where the contour line is relatively sparse, which not only reduces the difficulty of construction but also improves safety Seriously, I hope to help you, hope.
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Item A causes and effects are reversed; Item B water resources and precipitation are not the same concept, precipitation does not completely determine the total amount of water resources, and the same can not be reversed, and the precipitation in Jiangsu is in the transition zone of the Qinhuai line, about 800mm, while Heilongjiang is about 500mm. Item C is also not the same concept as the total timber stock and forest coverage rate, and the error is the same as item B, the area of Gansu Province is much larger than that of Jiangsu Province, although the total timber stock of Jiangsu Province is less than that of Gansu Province, but because of the small area of Jiangsu, the forest coverage rate is higher. There is only item D, and the population is either urban or rural, so it can be extrapolated.
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ABC simply says that the previous discussion cannot lead to the later conclusion A: A province is not only composed of cultivated land and mountainous areas, but also plains, lakes, etc., and the cultivated land in Sichuan is smaller than that of Heilongjiang, so the mountainous area of Sichuan is larger than that of Heilongjiang.
B: Heilongjiang has a lot of water resources because Heilongjiang Province has a large area, and in fact, Jiangsu's annual precipitation is greater than that of Heilongjiang.
C: The forest coverage rate of Jiangsu Province is that of Gansu Province, and the conclusion is also wrong.
How is D right? Well, the population can be divided into urban and rural population. If the proportion of urban population is large, the proportion of rural population is naturally small
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Question 8: A option is shown in Figure 1, from west to east, the forest belt gradually comes into being! Option d see Figure 2, we arbitrarily select a pair of vertical profile lines in the west, as shown in the figure The red section is the desert zone, the blue part is the subalpine desert steppe zone, and the green part is the alpine cushion vegetation belt, let's compare, the red line segment is the longest, the blue line segment is the shortest, according to this, the vertical zone in the western subterranean part is larger than the vertical zone spectrum width in the middle and upper part, option d is wrong!
Looking back at option b, the common sense is that the moisture (precipitation) of the mountains is related to the altitude, but it is not an absolute positive correlation (or negative correlation), it increases with the rise of altitude but decreases to a certain height, from east to west, the maximum precipitation height of the mountains gradually decreases, and it is said that it is a partial generalization, b is wrong! Option C, the vegetation landscape in the mountainous area is complex and diverse, on the one hand, due to the natural zone (base zone) of the area where the mountain is located, and on the other hand, on the basis of the base zone, the vegetation landscape is complicated by the water difference in the vertical direction, and this is the case in the northwest, especially in the southwest (especially in the hot and dry valley in the southwest). Choose C.
Question 9: As shown in Figure 3, the part circled in red in the map of the dark coniferous forest and larch forest belt, let's see, from east to west, point A is roughly the easternmost part of the belt, with an altitude of more than 1,000 meters, and point B points to the westernmost part of the belt, with an altitude of more than 3,000 meters, so the change in the height of the belt is characterized by rising from east to west. Exclude c, d.
The influencing factor is heat or moisture, as the third floor said, with the increase in altitude precipitation but to a certain height will decrease, at point B, at an altitude of more than 3000 meters, precipitation is not much, the control factor turns to heat. So choose A.
Also a personal opinion, good luck!
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8 You have to use the elimination method for this question, it is obvious that a and d are definitely wrong, and then take a good look at the options given, b is not right, is this necessarily related to the height of precipitation??? Obviously, b is also not right, and the main influencing factor of the question 9 is definitely heat. Therefore, b and d are excluded, and as for the change characteristics of the distribution height, this has a certain relationship with precipitation and continental climate distribution, so in summary, a is selected
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This is the question I did in my sophomore year of high school for the last college entrance examination.
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1 Factors influencing the salinity of the ocean:
1) Climatic factors: This is the main factor. That is, the relationship between precipitation and evaporation, precipitation is greater than evaporation, salinity is low, and vice versa is high.
2) Ocean current factors: at the same latitude, the salinity of the warm current is high, and the salinity of the cold current is low.
3) River runoff injection factors: the salinity of the sea area with river water injection is low.
4) Sea ice factors: the salinity of the sea area with icing phenomenon is high; Low at the time of ice melting.
2 Scandinavia is mountainous in the west, with steep coasts, islands and fjords on its western coast; The terrain in the east and south is relatively flat. The mountain range descends in steps to the east, with the first order being the Norrland Plateau, the second being the gently sloping hills, and the third level being the coastal plains.
3 20°W crosses the main geographical things: the eastern side of Greenland, Iceland, the Atlantic Ocean. The main geographical things that 30°s pass through: southern Australia, Indian Ocean, central South Africa, South Atlantic, central Argentina, central Chile, South Pacific Ocean.
4 To be exact, the latitude and longitude of Sydney is (151°17' e,33°55's,), Canberra is (,149°08' e,35°18's), depending on which one you think is close to the latitude and longitude you listed.
Wenshan City. Penghu Islands.
Chengdu Yangtze River (The question should be which river in my country?) The Yangtze River is also a river.
This question is wrong, Gansu is less than 110 degrees east longitude. (110°E 40°N) is the city of Baotou in Inner Mongolia.
Jiayuguan. Monchegorsk, Russia.
St. Petersburg, Russia.
San Francisco, USA.
5 Inner Mongolia Plateau.
Tibetan. Loess plateau.
Huanghuai Plain, located in Kaifeng, Henan.
It's not easy, it's finally finished, and there's nothing to type, mainly because it's hard to find information and locate. Although your bounty is not high, but every hard work is a harvest, I hope you will affirm my hard work.
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Question 1: If there is more precipitation, it will be light, if the temperature (latitude) is high, because there is less evaporation, the degree of closure is high, the number of rivers entering the sea is light, and the ocean current is light.
Question 2: The Scandinavian Mountains are the main mountain system in Scandinavia. The mountain range stretches from the border region of Sweden, Norway and Finland in the northeast to the southwest to southern Norway, with a gentle slope in the east and a direct flow into the Norwegian Sea and the North Sea in the west, forming fjords.
The mountain range is not very high in altitude, but due to long-term glacial erosion, it has developed a large number of steep peaks. Scandinavia, at a higher latitude, is the largest peninsula in Europe and the fifth largest peninsula in the world. Between the Barents Sea, the Norwegian Sea, the North Sea and the Baltic Sea, the northeast is connected to the mainland.
Question 3: Too broad to answer. For details, please refer to the test questions.
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Flipping through the atlas The problem of latitude and longitude is solved.
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I want to know the answer to this, too
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You're really wise, I've been looking for a long time and haven't found it, and finally I saw your question and thought there was an answer
Is there a multiple-choice answer? Send it up.
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Your question has few pictures, but I found this original question elsewhere, and the original question has four questions, and I will post them for you for your reference!
1. From the perspective of terrain type, the "Southern Great Wilderness" belongs to the "Great Northern Wilderness" belongs to the "Great Northern Wilderness" from the perspective of the restrictive conditions of agricultural development, and the "Great Northern Wilderness" is mainly the Western Great Wilderness
2. Briefly describe the favorable climatic conditions for the development of rubber production in the "Southern Wilderness" and cotton production in the "Western Wilderness".
3. Briefly explain the characteristics and favorable conditions of grain production in the "Great Northern Wilderness".
4. There are more than 250,000 large-scale erosion ditches in the black soil area of northeast China, and more than 4 billion kilograms of grain are lost every year only because the erosion ditches swallow up cultivated land. Combined with material 3, the causes of black soil erosion in the "Great Northern Wilderness" and the measures for sustainable development were analyzed.
Analysis】 Combined with the characteristics of China's regional geographical environment, the topographic and climatic conditions affecting the agricultural production of the "three major wildernesses" are analyzed. The "Southern Great Wilderness" is located in the tropical monsoon climate zone, with abundant water and heat, and the terrain is undulating. The "Western Wilderness" is located in the northwest inland, with a vast area, an arid climate, abundant sunshine, but a lack of water.
The Great Northern Wilderness is located in the northeast, with flat terrain and fertile soil, but high latitude and low heat. Question 3: The grain production of the "Great Northern Wilderness" is a type of commercial grain agriculture combined with the analysis of natural, socio-economic and other advantages. Question 4: Material 3: Explain that the land use of the "Great Northern Wilderness" is dominated by cultivated land, and due to the destruction of vegetation and the aggravation of soil erosion caused by reclamation, it is necessary to strengthen vegetation protection, adjust the structure of agricultural production and implement engineering measures.
Answer] 1. Hills Plains Insufficient heat conditions Water source conditions are insufficient.
2. The tropical monsoon climate of the Southern Wilderness is abundant in water and heat, and the rain is hot and rainy at the same time. The temperate continental climate of the Western Great Wilderness has high temperatures, strong sunlight in summer, and large temperature differences.
3. Characteristics: large scale of production and high level of mechanization. Favorable conditions: temperate monsoon climate, rain and heat, the same period plain area is large, black soil is fertile, which is conducive to the growth of crops, wide and sparsely populated, conducive to mechanized farming, and national policy support.
4. Reason: Excessive reclamation and unreasonable cultivation by human beings make the black soil lose the protection of vegetation. Measures: Planting trees and grasses, increasing areas where vegetation erosion is serious, returning farmland to forests and grazing land to grassland, leveling land, improving drainage systems, damming and silting land, adjusting the agricultural structure, adapting measures to local conditions, taking the road of optimizing the development of industries, and developing a comprehensive agricultural economy in agriculture, forestry, animal husbandry, and processing.
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1.Because of the high density of hot gases, when the sinking of the earth's rotation and the formation of wind, there will be horizontal movement.
2.It has to do with air pressure, and the so-called gradient force is like the contour line, and the difference between the data lines is the same as the density, and the air pressure is proportional to the density of the air, and the higher the density, the higher the air pressure, and the greater the wind speed.
3.Southwest winds in summer and northwest winds in winter.
4.The continental shelf off the northeast coast of Australia is providing ideal conditions for polyps to thrive and reproduce. Polyps feed on plankton, live in groups, and secrete calcareous bones.
The older generation of polyps leaves their remains after death, and the new generation continues to develop and reproduce, like a tree sprouting, to the heights and sides. Year after year, calcareous bones secreted by polyps are cemented together with the remains of marine organisms such as algae and shells, and accumulate into coral reefs. So it is the sedimentary active accumulation formation.
Metamorphic rocks belong to the metamorphism produced by the high temperature of magmatic intrusion rock layers.
5.Because of the serious soil erosion in the middle and upper reaches of the Yangtze River, there is a lack of forests.
6.The mid-latitude and low-latitude regions of the South American continent, the Pacific Ocean and the Pacific Rim region, the eastern Pacific Ocean, and the Yellow River Basin in China.
I'm sorry... Just finished the college entrance examination·· Some still can't remember. Hope.
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2 The horizontal pressure gradient force is the main cause of the formation of wind.
The uneven heating of the ground surface causes a difference in air pressure on the same horizontal plane. This difference in air pressure between unit distances is called a pressure gradient. As long as there is a pressure gradient in the horizontal plane, the force that causes the atmosphere to flow from the area of high pressure to the area of low pressure is generated, and this force is called the horizontal pressure gradient force.
Under the action of this force, the atmosphere flows from the high pressure area to the low pressure area to form the wind, and the greater the horizontal pressure gradient force, that is, the greater the pressure difference between the unit distance, and therefore the greater the wind.
The 4 Great Barrier Reef was formed by the deposition of carcasses of polyps, which secrete calcareous bones, and the limestone here is not metamorphosed.
5 Generally, the afforestation projects in the upper reaches of rivers are for the purpose of conserving water sources and conserving water and soil, because the upstream is an important water source for the whole river, and the upper reaches of the Yangtze River are mountainous, in order to prevent water pollution.
6 The waters of the eastern Pacific Ocean become warm.
I'm sorry, but I've been throwing away my geography books for a long time, and I don't have any references at hand, so that's all I can say.
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