Which statement best describes the vikings?

Why was the battle of gaugamela an important turning point in alexanders conquest of persian empire

Sole i will mark brainlist to who answer

Which is likely the most serious problem associated with an epidemic? 1. there are sometimes no cures to the diseases that spread. 2. people often die from the diseases that spread. 3. there are usually no ways to prevent people from getting ill. 4. people often don’t know they have a disease.