The person given credit for the first modern atomic theory was John Dalton. For him, all of the objects present is made up of atoms and that these atoms cannot be destroyed and divided. Also, in this theory, compounds are made up of having two or more atoms that are combined. Although this has been the very first and old theory, it is still valid in modern chemistry.
Answer:
1.Improper 2.proper 3.proper
Explanation:
1. The investigator is putting his personal feelings into the investigation
2.The investigator is being thought full and minding the persons feeling while still doing his job.
3. The investigator is just asking a question
The answer is A, hope this helps
