Reborn in that autumn

"Oh! Then I'll consider myself unlucky!" Ye Ran said.

Unexpectedly, Li Zichen's father hit him on the head.

Ye Ran groaned.

"Ouch, who hit me?" Ye Ran said, covering his head.

Li Zichen's father replied: "It's me. I ask you to write and you are always scratching your head. It seems that if I ask you to write more in the future, won't your head hurt?"

"No godfather? That's not what I meant. I like to write about godfathers." Ye Ran explained to Li Zichen's father.

Li Zichen's father said: "It's too late. Whether you like writing or not, you can write in the future. My mind will not change."

"Alas! I lost my wife and lost my troops." Ye Ran sighed.

"You haven't even grown your hair yet, and you don't have a partner or a wife yet? How can you lose your wife and then lose your troops?" Li Zichen's father said, hitting Ye Ran on the head again.

"Dad, if I beat you again, your old son will be beaten silly, and he won't be able to get a wife," Ye Ran complained, covering his head.

"It's better to be stupid, so that you don't harm any girl. If any girl likes you, just burn incense! You're such a loser, you don't even want to write a word." Li Zichen's father said.

"Okay, you two, stop arguing. The children have gone through so much hardship to come back. Husband, please stop saying a few words! Let's hear what happened to the children next." Liu Yueqin said to Li Zichen's father.

Li Zichen's father was silent and didn't say anything more?However, he kept looking at Ye Ran, obviously wanting to hear Ye Ran's brief explanation.

Liu Yueqin looked at her husband and godson Ye Ran with their eyes wide open and said to Ye Ran: "Son, go on, don't worry about your godfather, he wants to listen."

Ye Ran then spoke again: "We also encountered an underground river. What is an underground river? Do you know? An underground river refers to an underground river developed in carbonate rocks. It is caused by surface rivers seeping into the ground along cracks in underground rocks. After rock dissolution, collapse and water transportation, intricate pipeline systems of different sizes and lengths were formed underground, eventually forming today's underground river system."

"Underground rivers are also called "undercurrents". They are water flows with the main characteristics of rivers in caves and underground channels formed in large areas of limestone due to karstification."

"An underground river is an underground river channel formed by groundwater. It has a certain range of underground watersheds and often has an outlet but no entrance."

"The formation processes of underground rivers and surface rivers are completely different. Surface rivers and underground rivers may form at the same time, or they may not form until tens of thousands of years after the surface rivers are formed. Underground rivers are mainly It is slowly formed through the penetration of surface rivers, and eventually a stable river is gradually formed through the convergence of terrain and the impact of water flow.

In the end, many underground rivers will eventually take tens of thousands of years to form a huge river system that is as intricate and complex as the surface rivers. The formation of the underground river system is longer and more difficult than the formation of surface rivers. Rivers, whether on the surface or underground, are a microcosm of the earth's geology and landforms. "

"In fact, underground rivers are not much different from surface rivers. That is, underground rivers are formed for different reasons than surface river systems. The differences are large. Therefore, the proportion of material content contained in underground rivers is different from that of surface rivers. There is a huge difference. These differences are the biggest difference between underground rivers and surface rivers, so there is no need to worry about the danger of underground rivers."