The 1918 influenza epidemic killed between 50 million and 100 million people worldwide. This epidemic happened near the end of World War I. More people died from the influenza epidemic than were killed in the war. Which of the following explains why this virus was so deadly worldwide? Your A. All of the answer choices B. Infected soldiers returning from the war spread the virus when they coughed. C. Medical personnel often became ill as a result of exposure to airborne virus particles.

A. all of the answer choices

Explanation:

one reason why the influenza epidemic was such a problem was because it was contained poorly. people had it before they knew about it and then would accidentally spread it to others. the soldiers were in constant contact with others and some lived in poor conditions, this helped spread the virus quickly among them and then when they would go home they then gave it to others. the virus spread quickly and would infect people in close contact with people infected.

the correct answer is:

a population changes in response to a change in the environment.

characteristics of hydrocarbons