9. The professor's new calculations of the earth's age was seen as a major _____ in the scientific community
achievement
reformation
heresy
breakthrough
restoration
Answers
Answer:
The professor's new calculations of the earth's age was seen as a major breakthrough in the scientific community
Explanation:
As this word could also be an achievement word rather than breakthrough but why we've used that specific word is because of that particular reason which is provided below -
As nouns, such differences between these semantically-similar meaningful words mainly achievement and breakthrough are quite imperative as we all know, achievement is basically the act of achieving, accomplishment, or performing with due diligence and devotion along with sheer hard work and skills; whereas breakthrough could either be meant as military which is advancement through and past the enemy lines or it could be meant as major but innovative progress of discovery or overcoming some obstacle.
For more information - https://thesaurus.plus/related/achievement/breakthrough