A few high school geography questions add a little analysis to the correct answer Thank you, okay

1.I choose ACycle of day and night Analysis: bThe formation of day and night has nothing to do with rotation, but with the fact that the Earth is a non-luminous and opaque sphere; c.Alternation of the seasons dThe formation of the five belts is due to the formation of revolution.

2.I choose BOnly the spring and autumn equinoxes can coincide Analysis: The spring and autumn equinoxes are equal in length for day and night, and the morning and dusk lines connect the north and south poles to bisect the parallels, which coincide with the meridians.

3.I choose BThe daylight in Beijing is longer than that in Guangzhou Analysis: When the Tropic of Cancer is directly illuminated, it is the summer solstice, and the polar day phenomenon occurs in the Arctic Circle, and the noon solar height in Sydney is the minimum value of a year, and the earth orbits near the aphelion point of the orbit.

4.I choose DAnalysis: According to the law that the southern hemisphere deviates to the left and the northern hemisphere deviates to the right of the horizontally moving objects, the deflection to the left indicates that it is the southern hemisphere; And the higher the latitude, the greater the bias, Brasilia and Cape Town in the southern hemisphere, the latter at higher latitudes.

5.I choose AHarbin Analysis: December 22 is the winter solstice, the sun shines directly on the Tropic of Capricorn, the higher the latitude of the northern hemisphere, the smaller the solar altitude angle at noon, so it is Harbin.

I hope it helps you and I wish you progress in your studies!

1 a The significance of the rotation of the earth is that there is a change of day and night, and where there is sunlight, there is day and night, and the change of seasons and the formation of the five zones are all the meaning of revolution (because of the existence of the yellow and red angles, the direct point of the sun moves north and south).

2 b Only at the equinox does the sun shine directly on the equator, the global equinox of day and night, and the circle of morning and dusk coincides with the meridian coil.

3 b The Tropic of Cancer is the northernmost point of the direct sun, and the further north you go, the longer the days and the shorter the nights, until the polar night occurs near the Arctic Circle. The southern hemisphere reaches the lowest day length and solar altitude angle of the year, and Sydney is an Australian city located in the southern hemisphere. The direct sunlight hits the Tropic of Capricorn around June 22 and is located near aphelion (perihelion is early January and aphelion is early July).

4 d Cape Town, the capital of South Africa, is located at the southernmost point of Africa near 30° south latitude, while Brasilia is more than 10 degrees south latitude. The higher the latitude, the greater the geostrophic deflection force.

5 a On December 22, the Sun shines directly on the Tropic of Capricorn, which is the southernmost point, and the solar altitude angle in the Northern Hemisphere reaches its lowest value of the year, and the further north it goes, the smaller it becomes, and the polar night phenomenon occurs in the Arctic Circle. Harbin is the northernmost of the four cities.

。Causes of the phenomenon of day-night alternation: the rotation of the Earth; The earth does not shine and is opaque.

If the earth only revolves but does not rotate, there is still a diurnal cycle with a cycle of 1 year. ）。Only on the day of the spring equinox and autumn equinox does the sun shine directly on the equator.

When the Sun shines directly on the Tropic of Capricorn, the Northern Hemisphere is the summer solstice, when the days get longer the further north the world goes.

Affected by the Earth's rotation, the geostrophic deflection force is on the right side of the direction of motion in the northern hemisphere and on the left side in the southern hemisphere, and objects moving along the equator are not affected by it. The farther away from the equator, the greater the strength, and the farther d d is to the south than c (popular enough, hehe).

On the 22nd, the sun shines directly on the Tropic of Capricorn, and the further north the northern hemisphere goes, the lower the height of the sun at noon, and Harbin is clearly the northernmost of the four options.

The formation of day and night is due to the direct rays of sunlight and the earth itself does not emit light, so it excludes b, the change of seasons is the revolution excludes c, the formation of five bands is due to the exclusion of the air pressure belt and the wind band d) the morning and dusk line coincides with the meridian only when the day and night are equal) there should be a polar day, c should be the smallest, d should be the day point) to the left in the southern hemisphere, excluding ab, c latitude is lower than d, so d) it is winter in the northern hemisphere at this time, the higher the latitude, the smaller the noon sun altitude angle). Hopefully mine can solve some problems for you.

There is a book on it, 2 b .The morning and dusk lines and the meridian coil should coincide, and the sun should be directly on the equator, so they can only coincide on the spring and autumn equinoxes.

3.b When the Sun shines directly on the Tropic of Capricorn, and on the summer solstice in the Northern Hemisphere, there is a polar day error in the Arctic Circle; Sydney, Australia, is in the Southern Hemisphere, and when the height of the sun at noon is the maximum of the year, it is wrong to ask the sun to shine directly on the Tropic of Capricorn. 4 c The direction of horizontal motion of the object is deflected to the left and the deviation is maximum, and the object must be in the southern hemisphere, and the deflection is obvious at the bottom of the latitude, so C 5

a At noon on 22 December, the solar altitude angle is the smallest at the North Pole in the Northern Hemisphere, and the further south the solar altitude angle increases.

1. A because B is caused by the opacity and non-luminescence of the earth itself. CD is the meaning of the revolution of the earth.

2. b Because only at the equinox the global day and night are equinoxes, the morning and dusk lines pass through the north and south poles, which coincide with the meridian coil at this time.

3. The polar day phenomenon occurs in and within the Arctic Circle at this time.

cThe height of the Sun at noon in Sydney (Southern Hemisphere) is the maximum of a year when the Sun is directly against the Tropic of Capricorn.

d This is near aphelion (July).

4. The left deviation of the horizontally moving object should be in the southern hemisphere, ab excludes, and the higher the latitude, the greater the geostrophic deflection force, so d is correct.

5. The farther a is from the direct point, the smaller the noon solar altitude angle, and the direct solar point is on the Tropic of Capricorn at this time, so the highest latitude in the northern hemisphere is the farthest from the direct point and the noon solar altitude angle is the smallest, so a is correct.

These contents have corresponding principles in the book, and it is easier to understand the principles in the book clearly.

The temperature is relative, not looked at separately. Once there is a temperature difference, it can be formed.

It is mainly formed in the first place, Shanghai is downstream, and the possibility of erosion by flowing water is the greatest. The wind doesn't have much of an impact.

Northeast Taiwan is located in the Pacific Ocean, surrounded by sea water and strong sea breezes.

Wind erosion refers to the process by which loose material on the surface of the earth is blown or transported by the wind, and the abrasive effect of the surface by the particles blown up by the wind. Dry soils and relatively stable winds over the surface are the main conditions for severe wind erosion to occur. The main forms of wind erosion are blowing, jumping, rolling, abrasion, and abrasion.

What is the difference between weathering and erosion?

1.Weathering is generally carried out in situ, and erosion is generally carried out in motion.

2.The essence of weathering is "turning large rocks into small pieces", and weathering is the process of turning large rocks into debris.

The essence of erosion is that "small pieces are moved, and large pieces are getting smaller and smaller", and its focus is on "moving away", as for how far it has been moved, moving to **, is not the most concerned. The handling role should pay attention to the process and distance of the "small pieces" being transported.

3.The main difference between the two is: weathering mainly refers to the destruction of rocks by relatively stationary things; The main factors involved are:

changes in temperature, atmosphere, water, air, organisms, etc.; Erosion refers to the destruction of rocks and weathering by moving things. The main factors involved are the action of some moving forces (such as wind, flowing water, glaciers, waves) and so on.

1. South Pole December 22.

w，23°26′s

3. Morning line AB, dusk line BC

4、dae 19°43′s

6 p.m., 3 p.m., 6 p.m., D7, C

I can't see clearly in the middle of the graph, but the first question is either December 22 or March 21, and if you know whether it's the northern hemisphere or the southern hemisphere, the latter question will be easier.

A few years ago it would, now I forgot.

The other questions have been answered very well, and I will answer the sixth question. There is a figure to know that the latitude where point A is located is 180 °, that is, the international date change line, the position of 90 ° in the figure is 90 ° E, the time should be 24 o'clock, that is, 0 o'clock (it can be estimated from 18 o'clock at point C), because this figure is centered on the South Pole, and the earth's rotation should be clockwise, so from the international date change line clockwise to 90 ° E, it is December 22, accounting for three-quarters of the earth, and the remaining quarter is December 21, so the answer should be D, greater than 1 2. This is my understanding, and I would like to correct it.