He Xiao smiled faintly, extended his right hand, and snapped his fingers lightly.
Very quickly!
The scene before everyone's eyes suddenly changed!
It transformed into the appearance of the early Earth.
Amidst the exclamations of the crowd.
The entire class seemed to be in the universe beyond Earth, looking down at the early Earth from a bird's eye view!
"Everyone, I believe you've all studied geography.”
"Then we must know that in the early ancient times when the earth was formed, there was no oxygen in the air at all. Instead, the content of carbon dioxide was extremely high.”
"Later, with the emergence of autotrophs, they continuously consumed carbon dioxide and produced oxygen through photosynthesis, which gradually changed the atmospheric environment.”
" At the same time, a lot of carbon dioxide has also begun to settle in the ground through biological means, in the form of oil and coal, or in the form of various carbonates.”
"As a result, over time, the oxygen in the air began to naturally increase, while the carbon dioxide began to decrease, forming our current atmosphere.”
"I, the explanation here is not difficult. I believe that everyone who has been to the third year of high school can completely understand. There shouldn't be any problems, right?”
He Xiao asked everyone.
That kind of behavior, demeanor, and confidence!
He didn't look like a high school student at all!
On the other hand, Crane Sky looked like a top-notch professor who was speaking confidently on the podium of a university!
Everyone was mesmerized and deeply immersed in the story!
As soon as he finished speaking.
All the students in the class, including the biology teacher, immediately nodded their heads like chicks pecking at rice, indicating that they understood.
Seeing this, Crane Sky continued to explain,"
" Therefore, in the distant Middle Ages, the carbon dioxide content in the air was actually very high, and the oxygen content was very little. It was completely different from the composition of our atmosphere today!”
"Such an environment is not conducive to the reproduction of mammals!”
"However, we all know that the dinosaur species had a rapid reproduction in the Middle Ages and became the overlord of the Earth.”
"Doesn't that mean that…"
"The living environment that dinosaurs can adapt to is an environment with extremely high carbon dioxide concentration and very little oxygen!”
" However, at the end of the cretaceous period, when the dinosaurs went extinct, the atmospheric environment changed drastically. The oxygen concentration began to increase significantly, and the carbon dioxide decreased drastically. An environment that was not conducive to the reproduction of dinosaurs appeared.”
" Therefore, the dinosaur's body began to show signs of discomfort, and it became extremely easy for it to fall sick!”
" At the same time, the mammals that were more suitable for the atmospheric environment began to reproduce wantonly, competing with the dinosaurs for food territory!”
"In the end, all kinds of terrible factors mixed together, which led to the complete extinction of the dinosaur species!”
" Only the few reptiles that can adapt to both the old and the new environment, such as crocodiles, have managed to survive until today and become living fossils of the animal kingdom!”
"Do you understand what I mean?"
Boom!
He understood!
We understand!
Who would have thought?
It turned out that the change in the composition of the atmosphere was the real reason for the extinction of dinosaurs!
At this moment, the whole class suddenly became enlightened. Everyone's eyes began to show their understanding as He Xiao explained step by step!
"Oh my god! I finally understand now!"
"No wonder we humans want to promote energy conservation and reduce carbon dioxide.”
"If we release too much, the atmospheric environment will not be suitable for us mammoths, which is the normal reproduction of most of the creatures on Earth!”
"But speaking of which, I have a question!”
"Do you guys think that if we over-consume the Earth's resources and emit carbon dioxide, will the Earth's environment develop towards prehistoric times? Will it start to increase carbon dioxide and decrease oxygen, and the world will return to the Jurassic era?”
"What is it? I say, your point of view is a little novel!”
"That's right, Crane Sky, then tell me, can his point of view be realized?”
"That's right. Crane Sky, tell me about it. I really want to know, if the concentration of carbon dioxide increases and the oxygen is reduced again, will we humans perish? Will the dinosaurs make a comeback?”
At this moment, many people turned their eager eyes to Crane Sky again.
Including Teacher Wang of Biology!
Even she wanted to know if the dinosaurs would gradually revive and return to ancient times if the carbon dioxide increased!
Not for anything else!
It was just because Crane Sky had just revealed the truth of the extinction of dinosaurs. It was too exciting and satisfying!
It was simply enough to beat up any great teacher in the lecture hall!
It directly aroused their interest in learning!
It made them thirst for knowledge!
He was eager for the truth!
However, at this moment.
"Ding, ding, ding!"
The bell suddenly rang!
The break was over!
Math class began!
"I'm going. So fast?"
"What the f * ck, what happened?"
"Why is the class so short?”
"F * ck, so annoying! I still want to ask Crane Sky another question!”
"Ahhhhhh! No, I still want to go to biology class. Crane Sky, you better answer us quickly!”
However, the biology teacher completely ignored them.
Instead, when she picked up her lesson plan, she was extremely excited and said to Jiang Chen,""Crane Sky, I have something to ask you. Hurry up and come with me!”
"As for the others, hurry up and go to class. If you have any questions, you can ask them after class!”
What?
Left?
It had to be said that as soon as Teacher Biology King finished speaking.
The whole class wailed and wailed.
That feeling was like a raging fire that had been poured with a basin of cold water! This extinguished their thirst for paleomethyological knowledge!
"Teacher Wang, don't, don't, you can't just listen to Crane Sky reveal the secret and not let us know the answer!“
"What is it? Hand over Crane Sky alone?"
"Teacher Wang, this, this is too much!”
"Just now, you were the one who doubted He Xiao the most. Why are you taking everything for yourself now? You went to ask for the answer yourself?"
"This isn't fair! I want to protest! I want to protest!"
Even the fans in the live broadcast room were complaining.
"What? We haven't finished talking yet. Why are you leaving?”
"I've already taken off my pants, and you're only showing me this. If you don't tell me, I'll take it off now.”
"Yeah, hurry up and continue."
“………………”
However, the students 'protests and the complaints in the live broadcast room did not have any effect at all.
On the contrary, when the usually serious math teacher entered the classroom with this month's monthly exam papers in her arms, she was shocked.
The entire class was suppressed into silence and began to tremble!
It was over!
He had messed up his math exam this time! He was going to be scolded!
On the other side.
Half an hour later, in the Year Three teacher's office.
"Teacher Wang, I really didn't lie to you. These are the most accurate deductions I've made based on the most authentic historical data and years of research."
He Xiao spread his hands and began to explain to Mr. Wang for the third time.
During this period of time.
Mr. Wang asked Crane Sky a total of 16 super difficult questions about paleology.
One had to know that these difficult questions were all questions that only a doctor could discuss when Teacher Wang was studying at Qingbei University!
but the result
There were no exceptions!
Not only could Crane Sky answer it easily.
Moreover, he had even given his new perspective on some of the questions!
It had to be said that this performance was too shocking!
Even the number one prodigy in the world was probably nothing more than this!
Even the best paleometrists in the country couldn't compare to He Xiao's achievements in paleometriology!
"Phew!"
"Crane Sky, I have to say that your performance today has really broadened my horizons. It's as if you've opened a brand new door to palebiology for me.”
In the office.
When the biology teacher heard Crane Sky's explanation for the third time.
She finally let out a long sigh and woke up from her shock.
At this moment, she suddenly felt lucky.
He was glad that he had discovered a true genius!!!
With an excited expression, the biology teacher couldn't help but push up his glasses and lean forward to ask,
"How about this, Crane Sky, I'll ask you one last question. Are you willing to take the college entrance exam?”
"Are you still willing to be like the students in the previous class, studying crazily every day from 5 am to 11 pm?”
this
After hearing this, Crane Sky hesitated.
He could easily give the answer to any difficult question!
But now, he pursed his lips and hesitated!
One must know that attending the college entrance examination was the greatest wish of Crane Sky's parents in this life!
In the eyes of many people, this was one of the most important ways to become a talent!
but then again
With Crane Sky's current level, he really didn't need to prove himself through the college entrance examination.
just because
He was really too powerful!
It could be said that if Crane Sky participated in the college entrance examination!
Then, he would definitely get first place in the country!
It was like a university student competing with a group of children. Even if he won, it would be meaningless to him!
Looking at Crane Sky's expression, the biology teacher seemed to have thought of something. He smiled and said,
"Indeed, with your current understanding of palebiology, I don't think there's any need for you to take the exam.”
"There's a good saying that goes, there are specialties in every field.”
"This time, I suggest that you make an exception and get into Qingbei University through the biology competition that you are best at. You can become a palebiology major.”
"So, how about this."
"Crane Xiao, this is my teacher's name card when I was studying at Qingbei University.”
"Go look for him these few days. I think with your performance just now, there will definitely be a lot of topics between the two of you.”
"In fact, the relationship between the two of you is not that of a junior asking a senior for advice, but rather, a relationship of discussing your own opinions!”
"Maybe your speech can give Professor Liu some inspiration and promote the development of palebiology in the country!”
After saying that, the biology teacher solemnly took out a name card and handed it to Crane Sky.
Crane Sky lowered his head to take a look!
Liu Jianguo!
He was a professor at Qingbei University, the dean of the Institute of Paleology, and a member of the Chinese Academy of Sciences!
The number one paleologist in China!
"Ha, what a big name."
Crane Sky looked at the name on the card and shook his head with a smile.
However, to the biology teacher's surprise,
He Xiao didn't even reach out to take it. Instead, he shook his head and said,"
"Teacher Wang, I think we should forget about contacting each other. I really don't want this business card because I think it doesn't mean anything to me at all!”
Buzz!
What was the point?
Are you kidding me?
It was such a precious opportunity that everyone wanted to get to know Professor Liu.
But you gave up?
What kind of thing was this!
Mr. Wang was furious.
It seemed that he had good intentions and wanted to help He Xiao develop his advantageous subject, so that he could become a pillar of palebiology and even be on par with his teacher, Professor Liu Jianguo!
But what was the result?
This kid actually refused?!
How could this be?
Wasn't this giving up on herself?
However, before Biology Teacher Wang could reprimand him...
Beside him, Crane Sky coughed lightly and spoke again.
And this time.
The moment Crane Sky opened his mouth, the biology teacher was dumbfounded!
He was completely stunned!
"Teacher Wang, it's not that I don't want to develop my expertise in the subject and let more people know the truth.”
"It's just that palebiology is indeed not one of the subjects I'm best at!”
He Xiao shook his head bitterly and said," On the contrary, the fields I'm best at are materials science, applied physics, atmospheric science, nuclear physics, theoretical and applied mechanics.
" As for paleology?"
"I'm really sorry."
"That was just a major that I chose casually back then. It was just for the sake of relaxation and fun!”
Teacher Wang's phone rang again. It was the voice of an old man.
"Looks like I've underestimated you. Since you don't want to learn from me, I won't force you. I wish you a bright future.”
This book is provided by FunNovel Novel Book | Fan Fiction Novel [Beautiful Free Novel Book]