Which of the following statements about bugs is NOT true according to the passage?
The earth will have a better and cleaner environment if more creepy crawlies are killed.
Many bugs are in danger of dying out so we should not kill them due to fear or disgust.
Some bugs are extremely unpleasant that some people have a strong wish to destroy them.
Some people may be frightened so much by bugs that it leads to a psychological barrier to some degree.