I would say D.Mosquitoes,according to Jenkins,are a major threat to safety.
Given the context and wording, I would say the iron weight is symbolizing a scale, or a like instrument used for weighing things such as potatoes or hay.
The word 'collaborators' used in Pasteur's speech is referred to the fellow scientists.
Explanation:
- The word 'collaborators' used in Pasteur's speech is referred to the fellow scientists.
- The meaning is inferred from the line from his speech - "The collaborators and students who are now here share our scientific faith."
- The dictionary meaning of the collaborator - coworker, fellow worker.
Roosevelt was pointing out that all that these"muckrakers" as he dubbed them only reported on the bad and none of the good. He said this because as reporters they were focusing more on getting people to read their articles than telling the truth. this led to many factual errors in their writing. kind of like Reeta Skeeter.