<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”.
There is no capitalization in any of those sentences
-freddy goes with capital F
-James same
Answer:
Though India became a free nation on August 15, 1947, it declared itself a Sovereign, Democratic and Republic state with the adoption of the Constitution on January 26, 1950.
C. It has been said that there are other ways to solve the problem.
This is because it shows that the author has investigated other possible solutions and not just the one that they are writing about. All of the other answers just support the claim without mentioning anything else.
Volcanoes are being attempted to be controlled. (What you wrote is passive)
(Active) They are attempting to control volcanoes.