Cars bring convenience to people, so that in developed countries, cars are almost as essential as shoes. But the sulfur dioxide it brings is the killer of the atmosphere and the producer of El Nino. It not only creates frequent traffic jams and traffic accidents, but also is a bottomless pit that consumes energy and a mobile source of air pollution.
2. Food additives
Without food additives, there would be no modern food industry. Food additives are the product of the development of science and technology to meet people's needs. When used correctly, antioxidants can prevent or delay the oxidative deterioration of food, thus improving the stability and storage resistance of food, and at the same time preventing the formation of potentially harmful automatic oxidation substances of oil.
3. High-tech weapons
High-tech weapons can be used to defend our country. On the contrary, they can be used to invade other countries and attack others.
4. Battery
Battery is an important invention of human beings, which can bring light and power to human beings anytime and anywhere according to their needs. However, it is the pollution caused by batteries that makes more and more people pay attention to the fact that human beings may enjoy the benefits brought by batteries for more than 200 years, but they will suffer more and longer.
5. Network technology
People can enjoy their information conveniently. Through multimedia technology, letters can be sent in time for netizens to enjoy all kinds of information, which enriches the information of netizens, such as looking up information, watching news and watching videos.
At the same time, it is easy to lead netizens to indulge in the internet and affect their spiritual temperament. There are all kinds of games on the internet, and some netizens who can't stop are easily addicted to games, especially teenagers. Their families don't let them play, so they go to Internet cafes and even surf the Internet all day without eating, which seriously affects their health.