The city

so I knew that something was wrong, so I made do with what I took from the Nearby devices, and I brought a corpse with me to find out the causes of death, but the strange thing is that the cause is poisoning, but I did not know the type of poison. I will send the sample to the city laboratory to find out the poison.external view; The two scientists are preparing to launch a drone for research and imaging (outside, wearing heavy clothes, cold gloves, computers and aircraft control devices, after they have installed some measuring devices on them, and after they have done all the pre-launch checks to make sure the battery and navigation devices are not freezing and the propellers are not freezing and all that is necessary.The scientist Randy put the plane in the small launch runway and gave the go signal to the scientist Genesky, who launched the march from the control devices in front of him.Randy: This is such a beautiful sight that no one can get tired of, no matter how much they watch it.Where were the bodies found, Mrs. Randy, speaking to Geneski?Geneski: About 30 km away from here at the fifth and sixth points, and I could not complete the ten points.Randy: He looks at a map on the screen that shows the location of the march with the ten points distributed over equal dimensions from each other, saying we are now near the second point and there is nothing and this is good.He interrupts his words after noticing what appears to be a corpse of a bear, pointing his finger at the screen, addressing his words to Genesky.Genresky, holding the joystick in the procession, turns it around and lowers to where Randy points out. On the screen, there is a corpse of a polar bear, and not far from him, the corpses of what appears to be a group of dead bears appear on the screen.Randy: But you said that you found the bodies in point five and six, and this second point, how is this (directing his words to Geneski).Geneski: Yes, this is what I found yesterday evening in the fifth and sixth points, and I was not able to complete the way to the rest of the points, as I told you.The drone continues to move towards the rest of the points, and more and more bodies appear on the screen. Suddenly, the lens and the images became blurry, and after a short period of time the signal stopped and the broadcast disappeared from the drone .The two knew that the drone had fallen, but they did not know the reason, and a discussion took place between them as to whether they should go to the place where the drone is supposed to have fallen and try to find out the reason behind that.Geneski: So who will go and attend the drone and bring some equipment from the points...?Randy: Don't look at me, I won't risk and go there after what I saw of dozens of healthy polar bears that died without any knowing the reason behind it and most likely the reason is some kind of gas because what brought down the plane in the sky is the same that killed these bears. .!Genresky: No problem. You should go in an anti-poison suit. We have to find out why. That's why we are here. We are scientists. Our job is to explain unexplained phenomena