The "dirty snowball" made by Guo Sen lived up to expectations, the surface ice did not melt too much due to friction with the atmosphere, but passed through the vacuum zone in a very short time and reached the outermost position of the atmosphere of the sphere of the Ocean Star.

Then the dirty snowball sank into the thick atmosphere, and despite the strong friction, the ice didn't melt too much, and still wrapped itself tightly around the rock.

It landed lightly on the ground, and Guo Sen immediately peeled off the ice that had not yet completely melted, and then directly broke the boulder with his mind, and then pulled the water balloon rich in an extremely large number of multicellular organisms out of it.

Guo Sen was not in a hurry to move on to the next step, and after learning that almost all the water on this planet was corrosive, he decided to build a new "ocean" to protect these multicellular organisms.

As for the water that forms the ocean, it naturally comes from the water of the original ocean.

Just now he had some conjectures, could he extract the substance from the substance?

Specifically, it is to "filter" out some things.

Even, to "purify" some things.

For example, if you remove impurities from the ocean full of corrosive elements, will you be able to get healthy water that will not corrode?

Guo Sen thought about it and immediately put it into practice.

He pumped some of the water from the planet's oceans into the air, forming a huge balloon.

He then pulled out a smaller one-meter-diameter balloon from the balloon.

However, the next step ...... Well? What to do?

Guo Sen has not actually seen any specific purification experiments, and he can't imagine how to purify them.

He didn't expect that the dirty snowballs that had been so smoothly created and brought here before seemed to be at an impasse in the most basic aspect of the soil for their survival.

Not......

Guo Sen pondered hard.

Wait, water is made up of one hydrogen atom and two oxygen atoms, so if you can identify it and exclude everything else, can you filter it?

Guo Sen tried to shrink and shrink the visual system.

Soon, something that was originally extremely small now became extremely large in Guo Sen's line of sight, and after the sight was extremely narrowed to a considerable extent......

Well? Nope! Nothing......

Guo Sen did not know that atoms are far smaller than the wavelength of visible light and cannot reflect visible light. Just by maximizing the magnification of the visual system, you can't see the strange balls that are constantly drifting.

Guo Sen immediately gave up on this idea.

He felt that even if he did see it, he might not know what hydrogen atoms were and what oxygen atoms were.

And I seem to think too deeply.

Filtered words...... Guo Sen thought about it, and it seemed that he had used a mask with a filter layer or something.

Can those filter layers, made of countless meshes and fibers, filter out those acids?

However, Guo Sen immediately dispelled this idea.

After all, not to mention this planet, there is no material on his own planet that can make even a mask.

Even if he had, he wouldn't be able to do it.

There are some things that can't be made by imagination alone.

For example, I have never seen the precision machinery and masks, which seem simple, but in fact have chemical technology and textile technology to make essential products.

So what the hell should I do?

Filtration, filtration, ......

Wait a minute.

Guo Sen remembered the filtered thing again, and the object of filtration was really water!

Isn't filtered water just pure water? If you can't use chemical methods for purification, can't you just use physical methods?!

As for this, it's simple.

Isn't it the end of creating a "filter layer"?

Materials, that's all over the place.

Not too much.

Rocks everywhere are the best materials.

Guo Sen began to pound the stones. Turn them into balls of unequal particle size, as large as a few centimeters and as small as less than a millimeter, and use telekinesis to separate them into different sizes and float them all into the air, layer by layer.

The largest particle size is at the top, and the smallest is at the bottom.

Guo Sen soon dug a large pit in the land closer to the interior, diverting the sea water and the rock layers.

The preparations were almost done, and Guo Sen once again cleaned the dust and the like from the big pit on the side, and after making sure that there was nothing strange, it was time to start his experiment.

First of all, a huge amount of green sea water gradually covers the top rock layer.

Guo Sen didn't dump the water balloon directly on the top of the rock layer as if it were punctured, allowing them to pass quickly. That might have washed away the not-so-solid rock formation, not to mention the excess corrosive water that had fallen.

Sea water passes through the first, second, third layers at a slow pace...... After forty-two layers of filtration, we finally reached the end - in the big pit!

Guo Sen was not too anxious, but continued to slow down this action, filtering the water little by little, and as time passed, more and more water dripped down.

He felt that it was really quite painstaking to control those rock formations and not let them remain as they were because they were continuously washed and soaked by water, although his ability was very strong, but if he kept this kind of action to control, not to mention anything else, first of all, this annoyance could be annoying for a while.

He hates trouble the most, but this job, even if it is troublesome, has to be done, after all, so many preparations have been done before, and there is more and more water in this big pit, it is too much pity to give up at this time.

Guo Sen constantly brought a huge amount of water from the ocean, made it into a water ball, and then put it on this rock layer to filter it over and over again, in order to end this boring work as soon as possible, he crushed more stones and kneaded them, and made a new filter layer.

In this way, Guo Sen got to the location of this big pit on this planet until it was dark night, and only then did he cover the whole pit with filtered water.

But that's not all.

In order to be on the safe side, Guo Sen first selected a lucky spectator from the water balloon of multicellular life that he had obtained before, and let him try it first, whether the water could make them live or make them die.

Soon, a creature that looked like a translucent little crab was picked out and successfully fell into the huge pit with the water droplets.

After floating on the water for a while, it was still at first, but then it seemed to have adapted to the environment and began to swim happily!

Guo Sen knew that this time it was really a success!

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