英语辩论赛 题目 nature disaster is more horrible than mammade disaster~~~正方论据 万分感谢

This house believes that natural disasters are more horrible than man-made disasters because of a number of reasons.
Firstly, natural disasters are unpredictable. Although some scientists know that some natural disasters might occur in a certain area, they don't know when exactly they are going to happen. This means that people cannot protect themselves easily against natural disasters, whereas people can easily run away when a manmade disaster such as a war takes place. For example, the Sichuan earthquake that happened last year was very sudden. No one knew it until millions of people were injured and thousands killed.
Secondly, natural disasters are harder for us to understand than man-made ones. This is because we do not have a great understanding of nature so far. Therefore once a natural disaster such as a new disease takes place, we would have to investigate for a long time before we can find away to stop it. And by the time we found the solution, people will alr