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2-3. Select D and A. The shortest distance between two places is the part of the circle that passes through the two places and passes through the center of the earth that is less apart. Airport A and Airport B are just on the same meridian circle, so the shortest route between the two places is to fly along the meridian circle, first fly south to the South Pole with a difference of 120 degrees of latitude, and then fly north to 35°s with a difference of 55 degrees of latitude, with a total difference of 120 + 55 = 175 degrees of latitude; First fly north to the north pole with a difference of 60 degrees of latitude, and then fly south to 35°s with a difference of 125 degrees of latitude, with a total difference of 60 + 125 = 185 degrees of latitude; Both are shorter as compared to the former.
Each latitude difference is 111km, so the shortest range is 175x111km.
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First of all, simply draw the geographical coordinates of the initial state and the last state, that is, two meridians and two parallels, the shortest line segment between the two points, and considering that the shorter line segment can clearly see that the course has been to the southeast. a
The shortest voyage can be calculated using the Pythagorean theorem, you only need to consider the circumference of the circle, and the prompt connection is to use the linear velocity of the earth at a certain point in the higher one, and the cosq* equatorial length is calculated to calculate the circumference of a certain latitude.
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If you don't know what the difficulty of this question is, if you consider the rotation of the second question, the option is not right, and you don't consider the rotation to choose A
Question 3 Choose a copy it, absolutely yes 12 squared plus 13 squared and then open the root number to get 175), if you are wrong, you will step on me.
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This question is a test of your knowledge related to latitude, and the answer is A. All four options are related to latitude.
Singapore is about 1° north latitude, so the latitude relationship: Singapore's "Shanghai" Beijing.
The greater the latitude, the greater the geostrophic deflection force, and option a is correct.
The linear velocity of autotransmission is the linear velocity with the earth's axis as the axis due to the rotation of the earth, and the smaller the latitude, the greater the linear velocity.
The height of the sun at noon is related to latitude and season, December 22 is the winter solstice in the Northern Hemisphere, and the higher the latitude of the Northern Hemisphere, the lower the height of the Sun at noon. Therefore, it should be Beijing "Shanghai" Singapore, C error.
The angular velocity of rotation is the same everywhere except for the north and south poles, which is 0. d error.
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Select [A] to analyze:
Geographically, the three cities are located in the northern hemisphere, and the changes from low latitude to high latitude are: Singapore, Shanghai, and Beijing.
aGeostrophic deflection force:
Size: f=2mv sin
m is the mass of the object.
f is the magnitude of the geostrophic deflection force.
v is the horizontal velocity component of the object.
is the angular velocity of the Earth's rotation.
sin is a sinusoidal function.
is the latitude at which the object is located.
Direction: perpendicular to the direction of the horizontal component of the object's velocity, the latitude is highest at the right in the northern hemisphere and the left pole in the southern hemisphere, sin = 1, reaching the maximum;
The latitude at the equator is 0 and sin = 0, so there is no geostrophic deflection force, so the geostrophic deflection force increases from the equator to the poles.
bRotation linear speed:
The linear speed is determined by the latitude. The equator decreases to the poles.
cNoon Sun Height:
December 22 is the winter solstice, the sun shines directly on the Tropic of Capricorn, and the height of the sun decreases from south to north at noon in various parts of the northern hemisphere.
dAngular velocity of rotation:
The angular velocity of the Earth is 24*60*60 per second, except for the north and south poles, which are zero.
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You can see that the number of white bars indicates that the water quality is good.
a.The Pearl River and the Yangtze River are located in the south, and the other rivers are located in the north. The water quality of the rivers in the south is significantly better than that in the north.
b.These rivers are basically in the monsoon zone, and there is not much difference between them.
c.This is also difficult to say, because there are developed and underdeveloped places in the areas where each river flows, and there is no way to compare, and according to common sense, the water quality of rivers in economically backward areas is better, and the water quality of rivers in economically developed areas is poor.
d.The map does not show the situation in winter, but it is common sense that the water quality of the river is better in the summer and worse in the winter. Because there is more precipitation in summer, the water quality will be better.
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SN is the morning line Because the earth rotates from west to east, turning the SN line is daytime, so SN is the morning line Ask sister, please ask the second and third questions.
Baby, I'm taking a little bit of clarity, especially that picture.
The question was wrong.
Don't worry, don't worry.
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Elimination method B, the rivers in the figure are all in the monsoon area, and option B does not make sense.
c. There is no necessary link between water quality and economic development. The economy in Yunnan is not developed, is the water quality not good?! It's about the humanities.
d. The water quality map in July in summer is really related to the season, and it cannot be shown in the picture. So I don't choose it.
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Approximate direction of the Blue Mountains Mountains: Note that the "eastern slope" and "western slope" are mentioned in the text, and if you see the origins of those rivers, you can see that they are distributed from east to west and close to the headwaters of the rivers;
Reasons for the distribution of coffee forests: According to the "temperature" mentioned in the question, the direction of the mountain range and the "east slope" and "west slope", as well as the altitude, regional climate (precipitation, etc.) and other geographical environments that affect the growth of coffee forests, you can answer them in detail, clear and organized.
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Hello! The geography teacher will answer your questions.
The time of the plane took off was 12:35 on July 10, which was local daylight saving time, indicating that the time in East 2 was 13:35 on July 10. At this time, the time of the East 8th District is the time of the East 2nd District plus 6 hours, which is 19:35 on July 10.
It was 3:55 a.m. on July 11 when it landed nearby, and the flight time of the plane was.
3:55 a.m. on July 11 - 19:35 p.m. on July 10.
8 hours 20 minutes.
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Each question is summarized by a large question answer Generally the answers to the big questions have rules The earth should be memorized In fact, my geography grades are very good, and there is no special learning method, but if you want to learn well, you should reach the point where the textbook is memorized like a stream Say a knowledge point, you can reflect where it is in the book What is the layout of that page For example, there is a ** knowledge point in that position Written in that paragraph, you should know in your mind what knowledge points are on that page in addition to that knowledge point Just reach this level Anyway, that's how I do, it's best to communicate with the teacher, ask the teacher to help, and I wish you a good grade.
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