A simple high school geography question please enter! Please elaborate! Thank you! ）

1) On December 22, the northern hemisphere is eastward, and the day length of A, B and C is less than 12 hours, and they are all located in the northern hemisphere. If the sun rises at the same time, then the two micro feathers are on the same morning and dusk line, the noon time is the same, and the day length of C is 11:16, then it is 6:22 local time, and Ding is 5:22 local time

02 Sunrise, the time difference between the two is 1:20, one longitude is 4 minutes, 80 longitudes are 20 degrees, choose C

2) In the winter of the Northern Hemisphere, the global sunrise and sunset direction are southeast and southwest, choose D

c The local time of sunrise is 5:38 and the local time of sunrise is 6:58, because 1° = 4 minutes, the difference between the sunrise time of C and Ding is 1 hour and 20 minutes, that is, 80 minutes, so the difference in longitude between the two places is 20°.

d On December 22, the direct point of the sun is located in the southern hemisphere, the days are long and the nights are short, and the daylight hours in place B are < 12 hours, indicating that it is located in the northern hemisphere, and the 12 hours of Erding land is located in the southern hemisphere. On that day, as seen from the second place, the sun rose from the southeast corner and set from the southwest corner. From Dingdi, the sun rises from the southeast corner and sets from the southwest corner.

So the direction is southwest.

The above answers are personal opinions, I hope they will be helpful to you.

From the daylight hours of Bingding, it can be determined that the two places are sunrise at what time of day. Calculate by time Question 2: If B can be judged to be the northern hemisphere according to the length of the day, the sunset will be set in the southwest. Ding is located in the southern hemisphere and sunsets in the northwest.

d The height of the troposphere varies from latitude to latitude, ranging from about 17 to 18 km at low latitudes, 10 to 12 km at mid-latitudes and 8 to 9 km at high latitudes.

Answer: d From the stratosphere into the troposphere.

The Antarctic region is only 8 to 9 km, while the equator can reach 17 to 18 km.

The strong solar radiation mainly depends on the suspended matter of the air at the distance between the sunlight reaching the middle of the ground, and the terrain of the Hetao Plain and the Ningxia Plain is much higher than that of the Taihu Plain, and the atmosphere is relatively thin. The Tibetan Plateau's strong solar radiation is due to the thinning of the atmosphere, which is also true.

influencing factors; Latitude. Terrain.

The strong Qinghai-Tibet radiation is due to the high altitude, the solar radiation is received, and the air is thin, which has a poor weakening effect on solar radiation.

Question 2: The dominant trend of the spatial layout of the steel industry can be said to be simple from proximity to fuel (coal) - proximity If you have any questions, please ask. en

It's a bit rusty to not learn these for many years.,I think the first question is b.,The second question is c.,Do you have the answer?,If it's right.,I can explain it to you.,Otherwise, I'm afraid of misleading you.。。。

Topics that need a big question! **Above.

The key is to save you - what does the solid black line represent?

Choose C for question 1 and C for question 2.

From 45 degrees west longitude to 90 degrees west longitude, the direction of rotation of the earth is counterclockwise, the center point is the north pole, pm is the morning line, pn is the dusk line, m o'clock is 6 o'clock, n o'clock is 18 o'clock, and p o'clock is 0 o'clock. The sun shines directly on the Tropic of Cancer at 1 point, and the higher the latitude of the Northern Hemisphere, the longer the day, you can find the 0 hour longitude and the 180 degree longitude, and the new day accounts for 7/8, so that C is chosen for both.

c Analysis:

China's ethnic minority areas are mainly distributed in the northwest, southwest and northeast border areas.

the Mongols in the north and northwest, Manchu, Korea, Hezhe, Evenki, Oroqen, Daur in the three northeastern provinces; Hui, Uygur, Sala, Yugu, Tu, Kazakh, Tajik, Uzbek and other places in Gansu, Qinghai, Xinjiang and other places in Northwest China; Tibet, Yi, Bai, Naxi, Qiang, Hani, Susu, Lahu, Wa, Jingpo, Nu and so on in the southwest; Tujia, Dong, Miao, Yao, Buyi, Zhuang, Shui, Gelao, Gelao, Li, etc. in the central and southern regions; In addition, in Fujian, Zhejiang and other provinces in the southeast, there are She ethnic groups, and the aboriginal tribes of Taiwan Province.

c South-west, north-west and north-east.

First of all, it is obvious that you can't choose a and c from the perspective of the unit (not to sell land, to see how much land a person occupies, but to see how many people are accommodated in the area of a unit), and then use people, so the results and the unit will be matched and found that the answer to the question is b, which is very easy!

The unit of population density is the number of people area, and you can't take it for granted that you divide the previous value by the later one, and you have to take the right seat.

Population density = people per square kilometre. Pick B