Geographical significance of the Earth's rotation:

(1) Alternation of day and night: the dividing line between the day and night hemispheres - the morning and dusk line (circle) - the time of the intersection with the equator is 6 o'clock and 18 o'clock respectively - the height of the sun is 0 degrees - the plane where the morning and dusk circle is located is perpendicular to the sun's rays.

(2) Local time difference: east morning and west evening, longitude every 15 degrees difference of 1 hour.

(3) The offset of objects moving horizontally along the surface: no deviation on the equator, right deviation in the northern hemisphere, and left deviation in the southern hemisphere. The deflection force increases with latitude.

On the first evening of self-study after returning to school, Li Tianran memorized the first chapter of geography in the classroom, and tomorrow will usher in the first monthly exam since the beginning of high school.

On the second day of the exam, Li Tianran sat in the No. 1 position in the first examination room and answered the questions confidently......

Chinese and English are both the subjects that Li Tianran is best at, and the answers to the questions are very smooth.

I haven't learned calculus in high school mathematics, and all I have learned is some simple knowledge, Li Tianran answered it confidently, checked it again, and got 150 points!

Geography exam, multiple-choice: The mathematical formula for the scale is: ......

Li Tianran decisively chose A, 1:10000000.

Short Answer Question: Please briefly describe the geographical significance of the Earth's revolution (3 marks)

Haha, simple, I just reviewed it last night, and Li Tianran wrote calmly:

Answer: (1) The change in the length of day and night.

(2) Changes in the height of the sun at noon.

(3) Changes in the seasons.

History examination room, 1. Multiple choice questions: (20 questions, 3 points for each question, a total of 60 points, only one option for each question matches the meaning of the question)

1. The adverse effects of land annexation on feudal social and economic development are: ()

A. Intensify the contradictions between the peasants and the landlord class B. The fiscal revenues of the feudal government fell sharply

C. The order of agricultural production was seriously disrupted, and D. Frequent peasant uprisings occurred

It was a question done by Li Tianran, and Li Tianran filled in C in parentheses.

In the second major material question, Li Tianran checked the questions and combined the materials, combined and analyzed the knowledge he memorized, and wrote it word by word on the answer sheet.

After answering all the answers, Li Tianran checked it again, looked at his answer sheet, the handwriting was clear and neat, the word spacing was equal, the font was thin and gold, and the entire volume was not altered, like a calligraphy work, the people who read it were in a good mood, and then looked at the surrounding classmates who were still struggling to write, Li Tianran nodded with satisfaction and handed in the paper!

Two days have passed, and I finally completed all the subjects of language, mathematics, physics, chemistry, biology, politics, history and geography......