When someone casually looked down, he noticed that the ground under his feet began to add a pale green color.

The green wind spread, running towards the whole city and the distance under the feet of everyone.

The dusty sky for half a century has been cleansed of dust, and the blue sky and white clouds have reappeared in front of people.

I don't know who started it, people cried, laughed, hugged each other, regretted, rejoiced, grateful, and expressed unspeakable emotions to the fullest.

The once barren Motor City is like a black and white painting filled with color, which has been restored to vitality and vitality.

The re-returning vitality feeds back to the earth, and awakens the creatures in the state of survival.

"It's like when I wake up from a sleep, the world changes!" A little girl with a pale face whispered in her mother's ear.

"Mom, I like this world so much, it's really the blue sky and white clouds you told me! It's so beautiful! ”

"Mom, can I breathe wide? Am I free to play? I'm going to run and jump under the blue sky, Mom, I feel like I'm full of strength! ”

The relatives around the little girl all had red eyes.

Raising a child in a harsh environment like the last days can be unimaginable in terms of crisis and hardship.

"Of course, my nannan can run around and go outside to soak up the sun."

……

The pothos roots that were warmed by Tang Qinqin absorbed the abundant vitality in the air, and gradually sprouted new shoots and ushered in new life.

They huddle together with great activity, scrambling to grow their bodies, and embracing the world of their dreams with excitement.

Soon, the room they were in was filled with greenery, and their heads poked out through the crack in the door.

A good dream, Tang Qinqin woke up with a smile on the corner of his mouth.

"Hey, second brother, she's awake, she's awake!" A familiar voice came.

Tang Qinqin opened his eyes and looked over and saw a room full of green pothos.

Who are the two pothos brothers who have a strong sense of presence on Twitter?

She protects their roots, and the source of life gives them new life.

"Squeak!" The little bag in his pocket liked this rich vitality, and he leaned his head back and breathed intoxicatedly.

Outside the window, the sky was unexpectedly clear.

"I've returned to my place, thank you for your help!"

Tang Qinqin heard the sound of the vigorous voice.

"You're welcome, take care!"

……

After exiting the game world, Tang Qinqin gained a strong power of merit, which was a return gift from that world.

The main quest and side quest have been successfully completed, and the rewards are quite rich, and the points that have been exchanged for Xiao Qi have been successfully collected.

When this game mission is over, you can accompany it to choose a fluffy image.

At this time, she suddenly wanted to see the planet she lived on, the current appearance of the source of life.

Is it okay?

She was tempted to tell it that humanity had recognized the mistakes made and the damage done to it, and was working to make amends......

……

[Welcome to Survival Mode!] When it comes to acid rain, it makes people smell it. Acid rain refers to rain, snow and other forms of precipitation with a pH <5.6, which are mainly caused by the anthropogenic emission of large amounts of acidic substances into the atmosphere.

Acid rain can lead to soil acidification, accelerate the loss of soil mineral nutrients, induce plant diseases and pests, and greatly reduce crop yields.

It can also cause acid corrosion on the surface of buildings and other items, endangering health.

Survival Mode Simulation Environment (2): Black Town.

Main quest objective: Survive for a week.

Side quest objective: Return the brilliant colors to the land. ]

Black towns, as they really are, live up to their name.

Combined with the description of the game, Tang Qinqin roughly understood the origin of the name of the town in front of him.

Acid rain can harden the surface of non-metallic building materials, dissolve cement, create cavities and cracks, reduce strength, and damage buildings.

The darkening and dirtiness of building materials affects the capacity of the city and the urban landscape, which is known as the "black shell" effect.

And the town in front of him, even against the blue sky overhead, still looks dull.

In addition, the black town has one thing in common with the Motor City in that the town is all barren, without a trace of greenery, and there is nothing but surface buildings.

After walking aimlessly for a long time, Tang Qinqin did not meet a single aboriginal in the town.

Even in the center of the town, there is not a single figure in the streets lined with buildings.

Not to mention the shops on both sides of the street, all of which are unified Iron General Guards, and when you get closer, you can see that there are traces of potholes eroded by acid rain on the gate and Iron General.

Could it be that there are also some unusual weather phenomena here that make people stay at home and not go out?

Looking up at the sky, although it was not clear, it was clear, and there was no strange smell in the air.

Weird.

Tang Qinqin tried to use his psychic ability to find the creature aura of this town.

During this investigation, she discovered that the aborigines she couldn't find were not hiding in the surface buildings, but deep underground.

It is because the surface buildings have been eroded by acid rain to become less intense, the structure is too brittle, and there are potential safety hazards, so everyone has to find another way to choose the underground living environment, right?

……

When it was getting dark, Tang Qinqin chose the building that looked the strongest and walked in.

The house has not been taken care of for a long time, some are dilapidated, and even the gate is hidden.

The cold and musty smell on the face, and the remnants of cobwebs all over the corners of the house show that it has been unpopular for a long time.

There was only a few simple pieces of old furniture in the room, and a thick layer of dust had fallen on them.

What a deserted place to stay.

This situation made Tang Qinqin suddenly miss the warm-hearted Mi Le.

She and Grandpa Hua should have lived a normal life by now, right?

From now on, you can live under the blue sky and white clouds, surrounded by green waters and green mountains, and breathe fresh air.

We won't see each other again, will we?

"Hey, let's get to work."

After cleaning a room, it was already dark outside.

After closing the door and washing up briefly, Tang Qinqin ate something in the dark, and planned to rest early.

In the middle of the night, the crackling rain and the whirring wind sounded outside the window.

Tang Qinqin, who had always slept deeply, was also awakened by this big battle, and sat up and looked out the window.

The window is made of glass, the main component of the glass is silica, and the opponent who can corrode it is hydrofluoric acid, and under normal circumstances, acid rain has no way to take it.

This is also the fact that almost all other building materials in the house have been eroded and deteriorated, and it has not suffered any substantial damage except for the fact that it has not been cleaned and covered with dust for a long time and its clarity is not high.

Is the rain in black towns all acid rain? Or is it just a relatively high probability event?

Tang Qinqin got up and walked to the window and looked out.

At the same time, the Black Town Weather Monitoring Center located on the basement floor also sounded the alarm to warn the sleeping town residents to take acid rain protection and protect their lives and property.