What words and phrases does kofi Annan use to describe the horrors of the twentieth century? How does this help shape the perception of readers?

either online or traditional classroom can work for students. which is better will depend on students and teacher. students may have trouble following a lesson in classroom while they can study at their own pace online. other students may have trouble staying focus on their own in online classes. teachers are more used to classroom teaching but they may also be more worry about their jobs teaching online classes and work harder.

characteristic of bad weather