Odin Island, First National Primary School.

In a spacious and bright classroom, a middle-aged gentleman dressed in a gentleman's clothes and a bookish face is talking freely.

"...Students, in the previous "Physical Geography" class, we mentioned the erosion of land by rivers and oceans... In the past few years, the Institute of Geology has investigated the two largest rivers in the Thousand Lakes Republic. , The Rhine and Loeb, conducted long-term research..."

In the audience, the little heads listened attentively to the gentleman's words, their eyes gleaming with a gleam of knowledge.

"According to our investigation, the sand content in the water at the mouth of the two rivers reached 16.6 kg/m3 and 18.2 kg/m3... Each year, the amount of sediment washed into the sea is as high as 670 million. Tons, and 830 million tons..."

"You may not have an intuitive understanding of these data. I can give you an example... At the estuary of the Rhine, there is already a small island made of sediment. According to our guess, it will be at most another 100 years. In time, its area will "grow" to an area of ​​more than 50 square kilometers..."

A group of children suddenly exclaimed.

The gentleman talked about the ocean again.

"...Due to the scouring of waves and storms over the years, the rocks of the coastline will continue to peel off until the entire rock completely collapses and falls into the sea... This erosion has created many amazing natural wonders... such as this... …"

Having said that, the gentleman took a picture scroll placed on the podium and unfolded it with a "swish".

I saw a strange scenery painted on the scroll:

There are so many pinnacles shaped like spears standing in the vast sea. There are as many as thousands of these in a single picture.

"This is a natural wonder discovered by the Institute of Geology in the second half of last year on the edge of the storm sea... The forest of pinnacles drawn on the painting is just a small part of it. I can tell everyone..."

The gentleman's voice suddenly became a little enthusiastic.

"There are at least hundreds of thousands of pinnacles in that sea area... When you look down on them from the air, the scene is really spectacular... This is the peerless beauty created by the erosion of the ocean on the land!"

All the children in the classroom stared at the drawing paper closely, each with a look of fascination.

Obviously, the description of Mr. Teacher has deeply captured them.

The gentleman looked around the little carrot head and suddenly asked a question:

"My students, please imagine in your mind, if the ocean is constantly eroding the land, if the river on the land is constantly washing the sand into the ocean... Then, after tens of millions of years, even 100 million years later, What will happen?"

The classroom suddenly became quiet, only the sound of the magic air conditioner sending warm air.

After a few breaths, the gentleman saw that no one was speaking, and encouraged:

"Which beautiful lady, or handsome gentleman, is willing to contribute a wonderful guess?"

At this time, a little girl with freckles on her cheeks raised her right hand timidly.

The gentleman's eyes lit up and said happily:

"Oh, our Miss Natwa, would like to share her vision with everyone... For this kind of generous and selfless behavior, I must say thank you on behalf of everyone!"

The little girl smiled shyly and said softly:

"Mr. Dagamar, I think that if the erosion continues, the land will disappear completely one day!"

There was a sensation in the classroom.

"Gosh..."

"really?"

"how can that be……"

The conclusion that "the land is about to disappear" is too counterintuitive, and it is hard not to cause controversy.

The gentleman, Mr. Dagamar, raised his hand to signal the students to be quiet.

Then he spoke his own opinion:

"Logically speaking, Miss Natwa's assumption is completely correct!"

There was another commotion in the classroom.

Many children stared at the ground with horror, as if the land would all disappear in the next moment, and they would fall into the cold water.

"but……"

Da Gama used a turning point to attract the attention of the students.

"Our great lord believes that our planet contains a powerful force comparable to the'creating power', it..."

He waved his arms to strengthen his tone.

"It is preventing the land from disappearing!"

This sentence made the hearts of many children fall back.

Because Lord Lord's words are always correct and always make people feel at ease.

"Lord Lord proposed an unprecedented conjecture-the hypothesis of'planetary plate tectonics'!"

"He believes that the ‘lithosphere’ structure of our planet’s outer layer is not a whole. They float on top of a hot liquid called ‘lava’ and are pushed by the force of the lava flow to move constantly.”

"This is another hypothesis derived-the'plate drift' hypothesis..."

Dagama got more and more excited as he talked about it, while explaining, while writing and drawing on the blackboard, explaining this amazing conjecture in detail.

"...The adjacent plates are squeezed against each other, causing the edges to bulge, which will lead to the emergence of mountains...The largest mountain range in the Thousand Lakes Republic, the Inca Mountain Range, is for this reason..."

"There is another possibility of plate collision, that is, one plate is inserted into the bottom of another plate and lifted up. This will make the land higher and higher, and the area will become larger and larger..."

Later, Dagama concluded:

"According to this hypothesis, it is precisely because of their role that new continents will continue to appear, resisting the erosion of rivers and oceans. We don't need to worry about the fact that the land will disappear and the sea will flood the world!"

The little girl Natva raised her hand again:

"Mr. Dagamar, I noticed that what you are talking about is only a hypothesis of Lord Lord. Has the'Geological Institute' found evidence?"

Many children glared at Natva, as if she was looking forward to landing and disappearing, and everyone was soaked in the sea.

Da Gama smiled slightly and said softly:

"Ms. Natwa, you asked a great question! In scientific research, you must have the spirit of questioning, and everything must pay attention to evidence... There is no theory supported by strong evidence, even if it is logical, it is just a guess. Not a fact!"

"In fact, two years ago, when Lord Lord made his first'planetary plate tectonics', it caused a huge controversy within the'Geological Institute'. The number of opponents was far more than that of supporters."

"The Lord also mentioned that under normal circumstances, the movement of plates, outside of the production of land, will also cause natural phenomena such as'earthquakes' and'volcanic eruptions.'"

"However, in the past thousands of years, there are very few records about'earthquakes' in various historical books, and the authenticity is questionable... As for'volcanic eruptions', no one knows what it is. No one has ever seen the so-called'lava'."

(Chapter 217, mentioned that outsiders don’t know what a volcano is)

"In this regard, Lord Lord guessed that many years ago, this planet had undergone a huge change that changed the landscape of the entire planet. It is very likely that it has caused some unknown and mysterious influence on this world, which directly led to the'earthquake'. , The disappearance of the'volcano'."

"But this guess also doesn't produce enough evidence to convince everyone..."

Dagama's all sorts of strange talks made the students listen with gusto.

The "great change" he referred to naturally refers to the "disaster of the world", but this news is still in the confidential stage, so he can only pass it vaguely.

"However, in the second half of last year, Lord Lord discovered the legendary'lava' for the first time when exploring the Misty Sea... They kept gushing from the ground and cooled into black rocks when they encountered sea water."

There was another exclamation in the classroom.

"This is a very important piece of evidence. It strongly proves that there is indeed liquid lava below the rock formation, not hard rock that seems to have no end in sight."

"However, the discovery of'lava' only confirmed part of the hypothesis of Lord Lord, and it is not enough to support the hypothesis of the entire'planetary plate tectonics..."

This sentence made many students look regretful.

As a new generation who grew up under Reynolds, they are willing to believe every word of Lord Lord, and hope to see Lord Lord’s theory be confirmed.

After the students digested their words, Da Gama smiled and said:

"My students, if you finish your education in the future, if anyone chooses to work in the'Institute of Geology' and successfully discovers the exact evidence of the existence of the'planet plate'... I think Lord Lord will not hesitate to grant him, The highest honor in the territory-the Golden Odin Medal!"

"Wow!"

The classroom became lively.

Students all know that the "Golden Odin Medal" not only represents a great honor, but also means unimaginable economic benefits.

Because with this medal, there are huge rewards of up to 3000 Kinnars!

Even a child knows what an amazing wealth 3,000 Kinnars are.

"I want to study hard and work in the "Institute of Geology" in the future..."

"I want to prove the hypothesis of "planetary plate tectonics" and receive the "Golden Odin Medal" (3000 Kinnars) from Lord Lord..."

At this moment, almost all children have the above thoughts in their hearts.

"Boom! Boom!"

The classroom door was knocked suddenly.

Then the door was pushed a little open, and a male voice came in.

"Mr. Dagamar, there is a Mr. Officer from the Lord's Mansion, I want to talk to you..."

Da Gama was shocked and walked out quickly.

Before long, intermittent conversations passed through the cracks in the uncovered door and reached the ears of the students.

"...Mr. Dagamar, on behalf of the Lord... I invite you... to join the upcoming... "Northern Polar Scientific Expedition Team"..."

"...Oh, Lord Cristiano, it's my honor...I want to know when to leave and the approximate itinerary...what preparations do I need to do..."

"... Mr. Dagamar... Departure date... First Sunday of the Last Winter Moon... First arrive at the Snowthorn Kingdom on the Frozen Land, and then explore the Polar Frozen Snow Field... The Lord’s Mansion will provide all supplies ..."