Pick up a Small Planet and Build the Supreme Civilization of the Universe

Qin Yu picked up a small planet that was still in primitive society. Due to time and space constraints, he cannot directly help the villains on the planet, but he can deliver a word to them every day. So Qin Yu posted a message asking for help. If civilization was destroyed and only one sentence could be left in each subject, what would you say? Netizens responded this way. Medicine: Heat water to cleanse the body and drink. Geology: Putting stones of various colors in the fire and burning them may be useful Mechanical: If an item makes you feel comfortable, let everyone know about it! Physics... Chemistry... With Qin Yu's help, this planet gradually developed from a primitive society into the highest civilization in the universe! Until one day, the earth encounters an alien invasion and is about to be destroyed. Qin Yu's last message to the planet: "Our civilization is about to be cut off. I hope you can remember that in the solar system, a brilliant civilization was born, and it was called the Earth..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.