Charcoal is black when you buy it.
When you burn it, it turns red.
After burning, the charcoal is grey.
He opposed anything that agreed with slavery
It is true that a case study allows a more detailed look at the life of a single subject than any other study.
Answer: Option A
<u>Explanation:</u>
Case Study is a detailed study of a particular subject which can be anything like an individual person or a group or a situation that has occurred at a particular period of time.
This study is a study of almost all the aspects of the subject and an in depth study of the subject of study and also the conditions of the subject is also studied. Normally to study a case study, a method of research is used to collect information of the subject that is to be studied.
Here you go
Explanation:
Societies that rely primarily or exclusively on hunting wild animals, fishing, and gathering wild fruits, berries, nuts, and vegetables to support their diet. Until humans began to domesticate plants and animals about ten thousand years ago, all human societies were hunter-gatherers.