<u>Answer:</u>
Eradicating smallpox was successful because of many reasons.
<u>Explanation:</u>
Smallpox was regularly found in an area or we can say it was prevalent in some places. So, mortality rates were high. It was caused by variola virus and affected mainly humans. So, it was essential that such vaccine is developed which can successfully immune people from this disease.
Smallpox vaccine then started spreading across "Europe and North America" and then gradually it spread all over the world and successfully eradicated smallpox by 1980. Other diseases that have been controlled by vaccines are “diphtheria, bacterial influenza, measles, mumps, rubella, and tetanus”.
Answer:
Look for sources that has some expertise.
Explanation:
Dora should pick the professor because he went to one of the best colleges in the U.S. that worked to manufacture SUVs. SUVgreatness.com was written by an anonymous source, which can not be trusted and presents an opinion about how SUVs #1 when it comes to safety.
Answer:
It is a small American animal that lives underground and whose head and body are protected by a hard shell
