With the development of human society, we have entered an era full of high technology, which makes our life full of freshness and makes our era stand at a new starting point. However, the sky now seems to be covered with a layer of yarn. It is not as blue as it was decades ago, and the river looks so greasy.

Garbage, dead fish and dead shrimp are also common on the river, and the forest area has dropped sharply, but there are more and more barren yellow land, and sandstorms in the northwest are more rampant. What caused all this? Is the earth really doomed to destruction? We can't deny that the benefits brought by scientific and technological development are everywhere.

In ancient times, fighting was a common thing. Those soldiers who were seriously injured in the battle can't wait for the day when they see their loved ones, because there is often only a dead end waiting for them. Now, if there is a car accident or other personal injury, as long as we make a phone call in time, the ambulance will arrive immediately.

Take you to the hospital for emergency treatment. If it had been so timely, so many people would not have died in ancient times. While science and technology bring us benefits, problems also follow. Now countries have gradually invented nuclear weapons and chemical and biological weapons, and these terrible weapons and equipment have also been applied to a certain extent in the two world wars.

Although they upgraded the people's military equipment, human life was more threatened. If these two world wars had happened in ancient times, the death toll would never have been so shocking. And the most terrible thing is, at the end of World War II.

The United States dropped two atomic bombs on Japan, "Little Boy" and "Fat Man", which almost razed Hiroshima and Nagasaki to the ground. For a long time, a normal plant didn't grow there, and in the following decades, all kinds of viruses flooded in this area, and almost all newborns suffered from various strange diseases.

There are basically no sound people, and until now it is a cloud that is difficult to dissipate. Everything has two sides, so does science and technology. We should not only learn to look at the pros and cons of scientific and technological development objectively and dialectically, but also understand that only by learning to seek advantages and avoid disadvantages and correctly grasping and controlling the development of the situation can science and technology exert its greatest value.