Don’t worry! Can you take a look at this answer? ＾＿＾The development of science and technology has brought great changes to our lives. But not all of these changes are for the better.

"Disadvantages": Environmental pollution. This is the most direct and obvious disadvantage.

2: Accelerating species extinction. This is caused by environmental pollution and human hunting. .It is also a disadvantage of technological development.

3: Personal safety is becoming increasingly insecure. Tens of thousands of crimes occur on average every day, and most of the criminal methods are related to the latest technology. .In particular, gun crimes make it difficult for ordinary people to guard against it. From the Second World War, we can already see that with the development of science and technology, the damage and losses caused by current wars are far from what they were in the past. There are even It may lead to the fate of human destruction.

4: Human physical fitness is not as good as before. With the development of science and technology, the emergence of various means of transportation such as gas trains, trains, and airplanes has caused major changes in human daily life. , human beings no longer always rely on their own two legs, so the physical quality of human beings today is no longer comparable to that of the past. In the past, Xiang Yu's "strengthening the mountains and rivers" is no longer possible in today's society. .If this situation continues to develop, it is possible that human limbs will atrophy and humans will take on a new form.

5: Various emerging germs continue to emerge, and the lethality of many germs has far exceeded In the past, the destructive power of germs was due to the rapid development of medical technology that accelerated the mutation of viruses. So much so that the speed of technological development could no longer keep up with the speed of virus mutations. Perhaps one day humanity will be wiped out by a major plague.